Salt-containing wastewater evaporation and membrane filtration combined treatment equipment

Abstract

The invention discloses salt-containing wastewater evaporation and membrane filtration combined treatment equipment which comprises a fixing plate, a driving assembly, an evaporation assembly, a condensation assembly and a membrane filtration assembly, one side of the upper surface of the fixing plate is fixedly connected with a collection frame, and a water pump driven by a motor is arranged on the side, away from the collection frame, of the upper surface of the fixing plate; the top end of the water pump communicates with a liquid inlet pipe, the other end of the liquid inlet pipe communicates with an evaporation tank, the bottom end of the evaporation tank is fixedly connected to the top end of the water pump, and the side, away from the liquid inlet pipe, of the top end of the evaporation tank communicates with an air guide pipe. The evaporation assembly is arranged to continuously stir wastewater in a reciprocating manner, so that accumulation of solutes on the heating surface is reduced, and convection between the wastewater and the heating surface is increased; by arranging the condensation assembly, water vapor is sucked and condensed, and the water vapor is guided and limited; by arranging the membrane filtering assembly, the condensed water body is temporarily stored and filtered, and meanwhile, the surface of a filtering membrane is backwashed.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater recovery and treatment, in particular to a combined treatment device for saline wastewater evaporation and membrane filtration. Background Art

[0002] The equipment for combined evaporation and membrane filtration of saline wastewater is a kind of equipment used to treat high-salt wastewater. By combining the two technologies of evaporation and membrane filtration, the salt and other impurities in the wastewater can be effectively removed; the evaporation technology evaporates the water in the wastewater and concentrates the salt and other dissolved substances in the wastewater; the membrane filtration technology further removes the suspended matter and soluble impurities in the wastewater.

[0003] After searching, the Chinese patent with publication number CN117819643B includes a shell, a water evaporation treatment mechanism is arranged in the shell, and the water evaporation treatment mechanism includes a support plate fixedly connected to the front of the inner wall of the shell, and the upper surface of the support plate is fixedly connected to the electric heating plate; the front of the shell is provided with a second box door, and the bottom of the shell is provided with a collection box corresponding to the position of the second box door, and the top of the shell is provided with a condensation mechanism, a part of the condensation mechanism is fixedly connected to the back of the shell, and the upper surface of the shell is provided with a wastewater conveying mechanism, and one end of the wastewater conveying mechanism is arranged in the condensation mechanism. The present invention can clean up the impurities and metal salts on the electric heating plate at any time, and effectively improve the evaporation efficiency of wastewater.

[0004] However, in the above patent, the cleaning roller is in a wet state when in contact with the wastewater in an evaporating state on the electric heating plate, which further causes the impurities to adhere to and scale on the cleaning roller. On the other hand, when the wastewater is used to cool the evaporated water vapor in the above patent, the heat exchange between the wastewater and the water vapor causes the wastewater temperature to rise, thereby causing the maximum saturation of soluble impurities in the wastewater to increase synchronously. At this time, some of the precipitated impurities that have reached the solubility saturation will be further dissolved. This part of the impurities that were originally intercepted by the filter can now pass through the filter smoothly, thereby increasing the probability of water vapor entraining impurity particles in the subsequent evaporation process, resulting in a decrease in the equipment treatment quality. Summary of the invention

[0005] The purpose of the present invention is to provide a combined treatment device for saline wastewater by evaporation and membrane filtration, which has the advantages of multiple purifications and dynamic cleaning and solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a salt-containing wastewater evaporation and membrane filtration combined treatment equipment, comprising a fixed plate and a driving component, an evaporation component, a condensation component and a membrane filtration component, one side of the upper surface of the fixed plate is fixedly connected to a collection frame, a side of the upper surface of the fixed plate away from the collection frame is provided with a water pump driven by a motor, the top of the water pump is connected to a liquid inlet pipe, the other end of the liquid inlet pipe is connected to an evaporation tank and the bottom end of the evaporation tank is fixedly connected to the top of the water pump, the side of the top of the evaporation tank away from the liquid inlet pipe is connected to an air guide pipe, the bottom end of the air guide pipe is connected to a condensation box, the top of the condensation box away from the air guide pipe is connected to a drain pipe, and the end of the drain pipe away from the condensation box is connected to a temporary storage tank.

[0007] Preferably, the driving assembly includes a driving wheel fixedly connected to the output shaft of the water pump motor, a chain 1 is meshed and transmission connected to the outer contour of the driving wheel, the other end of the chain 1 is meshed and transmission connected to a transmission wheel 1, the bottom end of the driving wheel is fixedly connected to a missing gear 1, and the missing gear 1 penetrates and is limitedly rotatably connected to the lower surface of the fixed plate, the bottom end of the missing gear 1 is fixedly connected to a missing gear ring, and a positioning wheel 1 is meshed and transmission connected to the outer contour of the missing gear 1.

[0008] The top end of the fixing plate is fixedly connected to the fixing plate, and the fixing plate passes through and is limited to rotate and is connected to the inner contour of the transmission wheel one. The axis center of the top end of the fixing wheel is passed through and is limited to rotate and is connected to a threaded shaft, and the bottom end of the threaded shaft is fixedly connected to the axis center of the upper surface of the positioning wheel one. The upper surface of the fixing wheel is fixedly connected to the bracket, and the upper contour of the top end of the bracket is limited to rotate and is connected to a helical tooth column in an upper limit position, and the threaded sleeve is screwed on the outer contour of the threaded shaft. The top end of the threaded sleeve passes through and is limited to rotate and is connected to the transmission plate one. The top end of the threaded sleeve is fixedly connected to the helical tooth column. The lower surface of the transmission plate one is fixedly connected to the telescopic rod. The middle section of the telescopic rod passes through and is fixedly connected to the transmission plate two. The transmission plate two is limited to rotate and is connected to the outer contour of the top end of the bracket. The upper surface of the transmission plate two is fixedly connected to the spiral slideway, and the transmission plate two is passed through and clamped with a discharging plug, and the discharging plug is located just above the collecting frame.

[0009] Preferably, the evaporation assembly further comprises a spoiler connected to the inner contour of the top end of the evaporation tank in a limited rotation manner, and the spoiler is meshed and transmission-connected to the outer contour of the helical gear column.

[0010] Preferably, the condensing component includes a chain 2 that is meshed and transmission connected to the outer contour of the toothed ring, the other end of the chain 2 is meshed and transmission connected to a transmission wheel 2, the axis of the transmission wheel 2 is penetrated and rotatably connected with a fixed shaft, and the fixed shaft is fixedly connected to the bottom end of the condensing box, the outer contour of the transmission wheel 2 is meshed and transmission connected with a positioning wheel 2 located on the side of the condensing box, the axis of the positioning wheel 2 is fixedly connected to a positioning shaft 1, and the positioning shaft 1 penetrates and extends to the interior of the condensing box.

[0011] Preferably, the condensing assembly also includes an eccentric wheel fixedly connected to a middle section of the positioning shaft and located inside the condensing box, an extrusion block passes through the outer contour of the eccentric wheel and is limitedly rotatably connected thereto, an oscillating plate is transmission-connected to the outer contour of the extrusion block, and the oscillating plate is limitedly rotatably connected to the inner contour of the condensing box.

[0012] Preferably, the membrane filtration assembly includes a chain three that is meshed and transmission connected to the outer contour of one end of the positioning shaft one, the other end of the chain three is meshed and transmission connected to the positioning shaft two, and the positioning shaft two penetrates and extends toward the inside of the temporary storage tank, the end of the positioning shaft two away from the chain three is fixedly connected to the missing gear two, the outer contour of the missing gear two is meshed and transmission connected to a rack, the end of the rack away from the missing gear two is fixedly connected to a lifting column, and the size of the outer contour of the top end of the lifting column is adapted to the inner diameter of the temporary storage tank.

[0013] Preferably, the membrane filtration assembly also includes a pressurized tube fixedly connected to the bottom of the temporary storage tank and penetrated by a lifting column and slidably connected, one side of the bottom of the pressurized tube is connected to a filter membrane, and a liquid outlet pipe is provided at the connection between the filter membrane and the pressurized tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides an evaporation component to evaporate the saline wastewater while continuously stirring the wastewater back and forth, so as to reduce the accumulation of solutes on the heating surface and reduce the risk of scaling. At the same time, it increases the convection between the wastewater and the heating surface, enhances the heat transfer rate and improves the evaporation efficiency.

[0016] 2. The present invention provides a condensation component to extract and condense water vapor and discharge the condensed water into the membrane filtration component. The condensation component is provided to guide and restrict the water vapor, thereby preventing steam backflow from affecting the processing efficiency of the equipment.

[0017] 3. The present invention provides a membrane filtration component to temporarily store and filter the condensed water, and backwash the surface of the filter membrane to reduce the risk of clogging of the filter membrane by dissolved impurities in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 It is a cross-sectional view of the main structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the drive assembly of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the evaporation component of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the evaporation component of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the condensation component of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the membrane filtration assembly of the present invention;

[0025] Figure 8 It is a cross-sectional view of the structure of the membrane filtration assembly of the present invention;

[0026] Fig. 9 It is the overall workflow diagram of the present invention.

[0027] In the figure: 1, fixed plate; 11, collection frame; 12, water pump; 13, liquid inlet pipe; 14, evaporation tank; 15, air guide pipe; 16, condensation tank; 17, liquid discharge pipe; 18, temporary storage tank; 2, driving wheel; 21, chain 1; 22, transmission wheel 1; 23, missing gear 1; 24, positioning wheel 1; 25, missing gear ring; 3, fixed wheel; 31, threaded shaft; 32, bracket; 33, threaded sleeve; 34, oblique tooth column; 35, transmission plate 1; 3 6. Telescopic rod; 37. Transmission plate 2; 38. Spiral slide; 39. Spoiler; 310. Discharge plug; 4. Chain 2; 41. Transmission wheel 2; 42. Fixed shaft; 43. Positioning wheel 2; 44. Positioning shaft 1; 45. Eccentric wheel; 46. Extrusion block; 47. Swinging plate; 5. Chain 3; 51. Positioning shaft 2; 52. Missing gear 2; 53. Rack; 54. Lifting column; 55. Pressurized pipe; 56. Filter membrane; 57. Liquid outlet pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] See also Figures 1 to 9 The present invention provides a technical solution: a combined treatment device for evaporation and membrane filtration of salt-containing wastewater, comprising a fixed plate 1 and a driving component, an evaporation component, a condensation component and a membrane filtration component, one side of the upper surface of the fixed plate 1 is fixedly connected with a collecting frame 11, and a water pump 12 driven by a motor is arranged on the side of the upper surface of the fixed plate 1 away from the collecting frame 11, the top of the water pump 12 is connected with a liquid inlet pipe 13, the other end of the liquid inlet pipe 13 is connected with an evaporation tank 14 and the bottom end of the evaporation tank 14 is fixedly connected to the top of the water pump 12, the top of the evaporation tank 14 is connected with an air guide pipe 15 on the side away from the liquid inlet pipe 13, the bottom end of the air guide pipe 15 is connected with a condensation tank 16, the top of the condensation tank 16 away from the side of the air guide pipe 15 is connected with a drain pipe 17, and the end of the drain pipe 17 away from the condensation tank 16 is connected with a temporary storage tank 18.

[0031] In the present device, the collecting frame 11 is used to collect impurities generated during the evaporation process. The water pump 12 is driven by a motor to pump wastewater into the evaporation tank 14 through the liquid inlet pipe 13. A heating module is provided at the bottom of the evaporation tank 14. The wastewater is further evaporated with the cooperation of the evaporation component. At the same time, the wastewater is continuously stirred back and forth to ensure that the wastewater is fully mixed to accelerate the heat conduction efficiency during the evaporation process and thus improve the evaporation efficiency. On the other hand, the reciprocating stirring can effectively reduce the scaling risk during the evaporation process.

[0032] Subsequently, the evaporated water vapor enters the condensation box 16 through the air guide pipe 15 and condenses into droplets under the action of the condensation component. Due to the one-way suction working mode of the condensation component, the backflow of water vapor and condensed droplets can be effectively avoided; further, the condensed droplets enter the temporary storage tank 18 along the discharge pipe 17 and are collected. At this time, the membrane filtration component performs intermittent pressurized filtration operations on the water stored in the temporary storage tank 18 to further remove soluble impurities in the water.

[0033] Embodiment 2:

[0034] See also Figure 3-Figure 5 This embodiment further illustrates the following on the basis of the first embodiment:

[0035] The driving assembly includes a driving wheel 2 fixedly connected to the output shaft of the water pump 12 motor, a chain 21 is meshed and transmission-connected on the outer contour of the driving wheel 2, the other end of the chain 21 is meshed and transmission-connected with a transmission wheel 22, a missing gear 23 is fixedly connected to the bottom end of the driving wheel 2, and the missing gear 23 penetrates and is rotationally limitedly connected to the lower surface of the fixed plate 1, a missing gear ring 25 is fixedly connected to the bottom end of the missing gear 23, and a positioning wheel 24 is meshed and transmission-connected on the outer contour of the missing gear 23.

[0036] The evaporation component includes a fixed wheel 3 fixedly connected to the upper surface of the fixed plate 1, and the fixed wheel 3 penetrates and is limitedly rotatably connected to the inner contour of the transmission wheel 22, the axis of the top end of the fixed wheel 3 is penetrated and limitedly rotatably connected with a threaded shaft 31, and the bottom end of the threaded shaft 31 is fixedly connected to the axis of the upper surface of the positioning wheel 24, the upper surface of the fixed wheel 3 is fixedly connected with a bracket 32, the upper limit sliding connection of the inner contour of the top end of the bracket 32 ​​is connected with a helical tooth column 34, and the threaded sleeve 33 is screwed on the outer contour of the threaded shaft 31, and the threaded sleeve 3 The top of the threaded sleeve 33 is penetrated and limitedly rotatably connected with a transmission plate 1 35, the top of the threaded sleeve 33 is fixedly connected with a helical tooth column 34, the lower surface of the transmission plate 1 35 is fixedly connected with a telescopic rod 36, the middle section of the telescopic rod 36 is penetrated and fixedly connected with a transmission plate 2 37, and the transmission plate 2 37 is limitedly rotatably connected to the outer contour of the top of the bracket 32, the upper surface of the transmission plate 2 37 is fixedly connected with a spiral slide 38, the transmission plate 2 37 is penetrated and clamped with a discharge plug 310, and the discharge plug 310 is located just above the collecting frame 11.

[0037] The evaporation assembly further includes a spoiler 39 which is rotationally connected to the inner contour of the top end of the evaporation tank 14 in a limited manner, and the spoiler 39 is meshed and transmission-connected to the outer contour of the helical gear column 34 .

[0038] It can be seen from Example 1 that when the motor drives the water pump 12 to start pumping wastewater, the driving assembly works synchronously. At this time, the driving wheel 2 drives the transmission wheel 22 to rotate synchronously via the chain 21, and the missing gear 23 and the missing gear ring 25 rotate simultaneously under the action of their fixed connection with the driving wheel 2. At this time, the missing gear 23 and the missing gear ring 25 are intermittently meshed with the positioning wheel 24 respectively. When the missing gear 23 is meshed with the positioning wheel 24, the missing gear 23 drives the positioning wheel 24 to rotate synchronously, and when the missing gear ring 25 is meshed with the positioning wheel 24, the missing gear ring 25 drives the positioning wheel 24 to reverse, that is, during the process of the equipment, the positioning wheel 24 is in a state of continuous forward and reverse rotation.

[0039] Furthermore, the positioning wheel 24 synchronously drives the threaded shaft 31 to continuously rotate forward and reversely, while the fixed wheel 3 and the bracket 32 ​​remain unchanged due to their fixed connection with the fixed plate 1. Furthermore, the threaded sleeve 33 cannot rotate along with the threaded shaft 31 due to its limited sliding connection with the bracket 32. That is, at this time, the forward and reverse rotation of the threaded shaft 31 will cause the threaded sleeve 33 to rise and fall synchronously, and the threaded sleeve 33 further drives the helical gear column 34 and the transmission plate 35 to rise and fall synchronously.

[0040] At the same time, the continuous positive rotation of the transmission wheel 1 22 further drives the telescopic rod 36, the transmission plate 2 37, the transmission plate 2 37 and the transmission plate 1 35 to rotate synchronously, that is, the transmission plate 1 35 rotates synchronously with the transmission wheel 1 22 while accompanying the rise and fall of the threaded sleeve 33. Through the telescopic structure of the telescopic rod 36, it is possible to avoid the rise and fall of the threaded sleeve 33 from interfering with the movement of other structures. Furthermore, since the height of the transmission plate 2 37 is fixed, the rise and fall of the transmission plate 1 35 indicates that the size of the space between the transmission plate 1 35 and the transmission plate 2 37 in the evaporation tank 14 increases and decreases synchronously, that is, the size of the evaporation space after the wastewater enters the evaporation tank 14 through the liquid inlet pipe 13 changes synchronously, thereby realizing the continuous reciprocating pressurization of the wastewater during the evaporation process, thereby pressing the impurities precipitated in the wastewater into the spiral slide 38, and the water vapor further rises to the upper half of the evaporation tank 14.

[0041] It should be noted that, since the telescopic rod 36 and the spiral slide 38 rotate synchronously with the transmission wheel 22, the rotation of the telescopic rod 36 can effectively stir the wastewater, ensure that the wastewater is fully mixed to improve the heat transfer efficiency during the evaporation process, and reduce the risk of impurities scaling on the inner wall of the evaporation tank 14; and the continuous rotation of the spiral slide 38 can gradually push out the impurities inside it and accumulate them on the surface of the discharge plug 310, and then collect the impurities generated during the evaporation of the wastewater in the collection frame 11 by intermittently pulling out the discharge plug 310.

[0042] Furthermore, the helical tooth column 34 along with the rise and fall of the threaded sleeve 33 will cause the spoiler 39 to rotate forward and backward within the evaporator 14. At this time, the reciprocating rotation of the spoiler 39 can fully disperse the water vapor in the rising process to reduce the risk of tiny droplets in the water vapor entraining impurities, thereby improving the wastewater treatment quality of the equipment.

[0043] Embodiment three:

[0044] See also Figure 6 This embodiment further illustrates the following on the basis of the second embodiment:

[0045] The condensing component includes a chain 24 meshing and transmission connected to the outer contour of the toothed ring 25, the other end of the chain 24 meshing and transmission connected to a transmission wheel 21, the axis of the transmission wheel 41 is penetrated and rotatably connected with a fixed shaft 42, and the fixed shaft 42 is fixedly connected to the bottom end of the condensation box 16, the outer contour of the transmission wheel 41 is meshed and transmission connected with a positioning wheel 2 43 located on the side of the condensation box 16, the axis of the positioning wheel 2 43 is fixedly connected with a positioning shaft 1 44, and the positioning shaft 1 44 penetrates and extends to the interior of the condensation box 16.

[0046] The condensing component also includes an eccentric wheel 45 fixedly connected to the middle section of the positioning shaft 44 and located inside the condensing box 16. An extrusion block 46 is passed through and connected to the outer contour of the eccentric wheel 45 for limited rotation. A swing plate 47 is transmission-connected to the outer contour of the extrusion block 46 and the swing plate 47 is connected to the inner contour of the condensing box 16 for limited rotation.

[0047] It can be seen from Example 1 and Example 2 that the dispersed water vapor enters the interior of the condensation box 16 along the air duct 15 and then condenses into droplets. This process belongs to the prior art and will not be described in detail here. At the same time, the driving component controls the condensation component to work synchronously. The toothed ring 25 further drives the fixed shaft 42 to rotate synchronously along the chain 2 4 along with the rotation of the toothed gear 23. The fixed shaft 42 further drives the positioning wheel 2 43 and the positioning shaft 1 44 to rotate. At this time, the eccentric wheel 45 begins to rotate eccentrically along the positioning shaft 1 44 and synchronously squeezes the extrusion block 46 and the swing plate 47. The extrusion block 46 begins to rotate synchronously eccentrically under the extrusion transmission action of the eccentric wheel 45, while the swing plate 47 cannot rotate eccentrically under the restriction of the condensation box 16. Then, under the transmission action of the extrusion block 46, the swing plate 47 begins to swing back and forth. At this time, the eccentric wheel 45, the extrusion block 46, the swing plate 47 and the condensation box 16 together form a suction pump structure.

[0048] During the reciprocating swing of the swing plate 47, the direction of the opening above it is continuously adjusted between the air duct 15 and the drain pipe 17. When the opening of the swing plate 47 points to the air duct 15, the eccentric wheel 45 is in the process of downward movement. At this time, the eccentric wheel 45 realizes the suction of the air duct 15 to draw water vapor from the air duct 15 into the condensation box 16; then when the eccentric wheel 45 moves upward, the opening of the swing plate 47 gradually approaches the drain pipe 17, and then through the squeezing of the eccentric wheel 45, the condensed water in the condensation box 16 is discharged into the temporary storage tank 18 along the drain pipe 17.

[0049] Due to the one-way suction setting of the condensation component, the risk of backflow of water vapor and condensed water in the air duct 15, the drain pipe 17 and the temporary storage tank 18 can be effectively reduced.

[0050] Embodiment 4:

[0051] See also Figure 7-Figure 8 This embodiment further illustrates the following on the basis of the third embodiment:

[0052] The membrane filtration assembly includes a chain 3 5 that is meshed and transmission connected to the outer contour of one end of a positioning shaft 1 44, the other end of the chain 3 5 is meshed and transmission connected to a positioning shaft 2 51, and the positioning shaft 2 51 passes through and extends toward the interior of the temporary storage tank 18, the end of the positioning shaft 2 51 away from the chain 3 5 is fixedly connected to a missing gear 2 52, the outer contour of the missing gear 2 52 is meshed and transmission connected to a rack 53, the end of the rack 53 away from the missing gear 2 52 is fixedly connected to a lifting column 54, and the size of the outer contour of the top end of the lifting column 54 is adapted to the inner diameter of the temporary storage tank 18.

[0053] The membrane filtration assembly also includes a pressurizing tube 55 fixedly connected to the bottom of the temporary storage tank 18 and penetrated and slidably connected by a lifting column 54. A filter membrane 56 is connected to one side of the bottom of the pressurizing tube 55. A liquid outlet pipe 57 is provided at the connection between the filter membrane 56 and the pressurizing tube 55.

[0054] It can be seen from Example 1 that when the condensation component is working, the membrane filtration component is driven synchronously, and the positioning shaft 1 44 rotates along with the positioning wheel 2 43 and further drives the positioning shaft 2 51 to rotate synchronously through the chain 3 5. At this time, the missing gear 2 52 rotates along with the positioning shaft 2 51 and further drives the rack 53 and the lifting column 54 to limit the lifting.

[0055] When the lifting column 54 rises to its bottom and separates from the pressurizing pipe 55, the condensate discharged into the temporary storage tank 18 along the discharge pipe 17 flows into the pressurizing pipe 55 along the gap between the bottom end of the lifting column 54 and the pressurizing pipe 55 and quickly fills the inside of the pressurizing pipe 55. Subsequently, the continued rotation of the missing gear 2 52 causes its missing tooth part to contact the rack 53. At this time, the rack 53 releases the meshing state with the missing gear 2 52 and rapidly descends under the action of its own gravity.

[0056] Furthermore, the lifting column 54 synchronously descends with the rack 53 to re-block the pressure tube 55 and gradually pressurize the inside of the pressure tube 55. Since the inside of the pressure tube 55 is full of condensed water at this time, the continuous pressurization of the inside of the pressure tube 55 by the lifting column 54 can cause the water inside the pressure tube 55 to be further filtered through the liquid outlet pipe 57 and discharged into the filter membrane 56, thereby completing the membrane filtration treatment of the water. The further descent of the lifting column 54 can contact the surface of the liquid outlet pipe 57, thereby simply scraping and cleaning the surface of the liquid outlet pipe 57 to reduce the risk of soluble impurities in the water precipitating and clogging the surface of the liquid outlet pipe 57.

[0057] It should be noted that in the process of water flowing into the pressurized pipe 55, since the inside of the pressurized pipe 55 is in a negative pressure state, the water flows in at a relatively high speed, which causes the water to effectively impact the inner wall of the bottom end of the pressurized pipe 55. At this time, a water hammer effect occurs at the bottom end of the pressurized pipe 55, causing the pressurized pipe 55 and the liquid outlet pipe 57 to vibrate. This vibration can further remove impurities attached to the surface of the liquid outlet pipe 57. At the same time, the splashing of water at the bottom end of the pressurized pipe 55 can also achieve backwashing of the surface of the liquid outlet pipe 57, thereby reducing the risk of blockage on the surface of the liquid outlet pipe 57.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined treatment device for saline wastewater evaporation and membrane filtration, comprising a fixed plate (1) and a drive assembly, an evaporation assembly, a condensation assembly and a membrane filtration assembly, characterized in that: A collecting frame (11) is fixedly connected to one side of the upper surface of the fixing plate (1); a water pump (12) driven by a motor is arranged on the side of the upper surface of the fixing plate (1) away from the collecting frame (11); the top end of the water pump (12) is connected to a liquid inlet pipe (13); the other end of the liquid inlet pipe (13) is connected to an evaporation tank (14); and the bottom end of the evaporation tank (14) is fixedly connected to the top end of the water pump (12); the top end of the evaporation tank (14) away from the liquid inlet pipe (13) is connected to an air guide pipe (15); the bottom end of the air guide pipe (15) is connected to a condensation tank (16); the top end of the condensation tank (16) away from the air guide pipe (15) is connected to a liquid discharge pipe (17); and the end of the liquid discharge pipe (17) away from the condensation tank (16) is connected to a temporary storage tank (18).

2. The combined treatment equipment for saline wastewater evaporation and membrane filtration according to claim 1 is characterized in that: The driving assembly comprises a driving wheel (2) fixedly connected to the output shaft of the water pump (12) motor, a chain (21) meshing and transmission-connected on the outer contour of the driving wheel (2), the other end of the chain (21) meshing and transmission-connected with a transmission wheel (22), a missing gear (23) fixedly connected at the bottom end of the driving wheel (2), and the missing gear (23) penetrates and is rotationally connected to the lower surface of the fixed plate (1), a missing gear ring (25) fixedly connected at the bottom end of the missing gear (23), and a positioning wheel (24) meshing and transmission-connected on the outer contour of the missing gear (23).

3. The combined treatment equipment for saline wastewater evaporation and membrane filtration according to claim 1 is characterized in that: The evaporation component comprises a fixed wheel (3) fixedly connected to the upper surface of the fixed plate (1), and the fixed wheel (3) penetrates and is limitedly rotatably connected to the inner contour of the transmission wheel (22), the axis of the top end of the fixed wheel (3) is penetrated and limitedly rotatably connected to a threaded shaft (31), and the bottom end of the threaded shaft (31) is fixedly connected to the axis of the upper surface of the positioning wheel (24), the upper surface of the fixed wheel (3) is fixedly connected to a bracket (32), the inner contour of the top end of the bracket (32) is limitedly slidably connected to a beveled tooth column (34), and the threaded sleeve (33) is screwed to the outer contour of the threaded shaft (31), and the threaded sleeve (33) is screwed to the outer contour of the threaded shaft (31). ) is penetrated and limitedly rotatably connected with a transmission plate 1 (35), the top end of the threaded sleeve (33) is fixedly connected with an oblique tooth column (34), the lower surface of the transmission plate 1 (35) is fixedly connected with a telescopic rod (36), the middle section of the telescopic rod (36) is penetrated and fixedly connected with a transmission plate 2 (37), and the transmission plate 2 (37) is limitedly rotatably connected to the outer contour of the top end of the bracket (32), the upper surface of the transmission plate 2 (37) is fixedly connected with a spiral slideway (38), and the transmission plate 2 (37) is penetrated and clamped with a discharge plug (310), and the discharge plug (310) is located directly above the collection frame (11).

4. The combined treatment equipment for saline wastewater evaporation and membrane filtration according to claim 1 is characterized in that: The evaporation component also includes a spoiler (39) which is rotationally connected to the inner contour of the top end of the evaporation tank (14) in a limited manner, and the spoiler (39) is meshed and transmission-connected to the outer contour of the helical tooth column (34).

5. The combined treatment equipment for saline wastewater evaporation and membrane filtration according to claim 1 is characterized in that: The condensing component comprises a chain (4) meshed and transmission-connected to the outer contour of the toothed ring (25); the other end of the chain (4) is meshed and transmission-connected to a transmission wheel (41); a fixed shaft (42) is passed through and rotationally connected to the axis of the transmission wheel (41); and the fixed shaft (42) is fixedly connected to the bottom end of the condensing box (16); a positioning wheel (43) is meshed and transmission-connected to the outer contour of the transmission wheel (41) and is located on the side of the condensing box (16); a positioning shaft (44) is fixedly connected to the axis of the positioning wheel (43); and the positioning shaft (44) passes through and extends to the inside of the condensing box (16).

6. The combined treatment equipment for saline wastewater evaporation and membrane filtration according to claim 5 is characterized in that: The condensing component also includes an eccentric wheel (45) fixedly connected to the middle section of the positioning shaft (44) and located inside the condensing box (16); an extrusion block (46) passes through the outer contour of the eccentric wheel (45) and is connected to it for limited rotation; a swing plate (47) is transmission-connected to the outer contour of the extrusion block (46), and the swing plate (47) is connected to the inner contour of the condensing box (16) for limited rotation.

7. The combined treatment equipment for saline wastewater evaporation and membrane filtration according to claim 1 is characterized in that: The membrane filtration assembly comprises a chain three (5) meshed with and transmission-connected to the outer contour of one end of a positioning shaft one (44); the other end of the chain three (5) is meshed with and transmission-connected to a positioning shaft two (51), and the positioning shaft two (51) passes through and extends toward the interior of the temporary storage tank (18); the end of the positioning shaft two (51) away from the chain three (5) is fixedly connected to a missing gear two (52); the outer contour of the missing gear two (52) is meshed with and transmission-connected to a rack (53); the end of the rack (53) away from the missing gear two (52) is fixedly connected to a lifting column (54), and the size of the outer contour of the top end of the lifting column (54) is adapted to the inner diameter of the temporary storage tank (18).

8. The equipment for combined treatment of saline wastewater by evaporation and membrane filtration according to claim 7, characterized in that: The membrane filtration assembly also includes a pressurizing tube (55) fixedly connected to the bottom end of the temporary storage tank (18) and penetrated and slidably connected by a lifting column (54); one side of the bottom end of the pressurizing tube (55) is connected to a filter membrane (56); and a liquid outlet pipe (57) is provided at the connection point between the filter membrane (56) and the pressurizing tube (55).

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