High-salinity wastewater evaporation treatment device

Abstract

The invention belongs to the technical field of wastewater treatment, particularly relates to a high-salinity wastewater evaporation treatment device, and aims to solve the problem that the energy consumption is increased in order to improve the evaporation efficiency of the existing high-salinity wastewater evaporation treatment device. The observation window is formed in the box body, and heat insulation glass is arranged in the observation window; the liquid inlet hopper is located above the box body, a cutting groove is formed in the upper side of the box body, and a steam exhaust pipe is fixedly connected into the cutting groove; and the three evaporation plates are all located in the box body, and the three evaporation plates are staggered up and down. According to the high-salinity wastewater evaporation treatment device disclosed by the invention, the evaporation treatment of high-salinity wastewater can be graded, the wastewater can fully absorb heat and evaporate in the treatment process by adopting low-temperature, middle-temperature and high-temperature gradient grading, the energy consumption is reduced while the evaporation effect is ensured, the smooth evaporation treatment is ensured, and the evaporation efficiency is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to a high-salt wastewater evaporation treatment device. Background Art

[0002] High-salt wastewater refers to industrial wastewater or special wastewater containing high concentrations of soluble inorganic salts such as sodium, calcium, magnesium, potassium, chloride ions, sulfate ions, etc. The most commonly used final disposal method is to evaporate the water from the concentrated brine to allow the salt to crystallize and precipitate. The resulting crystalline salt needs to be considered for landfill disposal or resource utilization based on its purity.

[0003] When existing high-salt wastewater evaporation treatment devices perform evaporation treatment on high-salt wastewater, in order to increase the evaporation rate of high-salt wastewater, the energy consumption of the devices is often increased, which greatly increases the treatment cost of high-salt wastewater. Summary of the Invention

[0004] The present invention discloses a high-salt wastewater evaporation treatment device, which aims to solve the technical problem in the background art that the existing high-salt wastewater evaporation treatment device will lead to increased energy consumption in order to improve the evaporation efficiency.

[0005] The present invention proposes a high-salt wastewater evaporation treatment device, comprising:

[0006] Box;

[0007] An observation window is provided on the box body and is provided with heat-insulating glass;

[0008] The liquid inlet hopper is located above the box body, and a groove is opened on the upper side of the box body, and an exhaust pipe is fixedly connected to the groove;

[0009] Three evaporation plates, all of which are located in the box and staggered up and down;

[0010] A stationary cylinder, the bottom of which is fixedly connected to the bottom inner wall of the box body, and a discharge pipe is provided on the stationary cylinder, one end of which passes through the box body and is located outside the box body, and a control valve is provided outside the discharge pipe;

[0011] The graded evaporation modules are located in the box and outside the evaporation plate. The graded evaporation modules are used to perform multi-stage evaporation on high-salt wastewater, so that each stage evaporates wastewater of different concentrations.

[0012] The cam is connected to the bottom of the evaporation plate, and the cam is connected to the bottom of the evaporation plate. A knocking rod is slidably connected in the groove, one side of the knocking rod is in contact with the outside of the evaporation plate, and the other side is fixedly connected to a counterweight block; the outside of the three knocking rods is fixedly connected to a fixing ring, and the side of the fixing ring close to the counterweight block is fixedly connected to a spring, and the end of the spring away from the fixing ring is fixedly connected to the outside of the fixing frame on the same side, and the outside of the fixing ring is fixedly connected to a rack, and the bottom of the evaporation plate is fixedly connected to motor 1; the output ends of the three motors are connected to transmission gears through couplings, and the transmission gears are meshed with the racks on the same side, and the outside of the box is movably connected to a round rod, and the outsides of the round rod, shaft rod 1 and shaft rod 3 are fixedly connected to transmission rollers, and the outsides of the three transmission rollers are provided with the same belt; the outside of the round rod is fixedly connected to synchronous gear 1, and the outside of the box is fixedly connected to motor 2, and the output end of motor 2 is connected to one side of shaft rod 2 through a coupling, and the outside of shaft rod 2 is fixedly connected to synchronous gear 2, which meshes with synchronous gear 1, and a heat exchange condensation module is provided on the upper side of the box.

[0013] In a preferred embodiment, the heat exchange condensing module includes a collecting box, the bottom of which is fixedly connected to the upper side of the box body, a circular hole is opened on the upper side of the collecting box, the inner wall of the circular hole is fixedly connected to the outside of the liquid inlet hopper, a drain pipe is provided in the collecting box, one end of the drain pipe passes through the box body into the box body, and the drain pipe is located above the evaporation plate, and the bottom inner wall of the collecting box is fixedly connected to a lifting plate, and the outside of the lifting plate is in contact with the outside of the drain pipe; a serpentine tube is provided in the collecting box, and the two ends of the serpentine tube are respectively fixedly connected to the input pipe and the output pipe, and the ends of the input pipe and the output pipe away from the collecting box are both fixedly connected to the same heat collecting box through the outside of the exhaust pipe, and the heat collecting box is located in the exhaust pipe; the outside of the heat collecting box is fixedly connected to a plurality of equidistantly distributed heat diffusion plates, and the upper side of the box body is fixedly connected to a pump, and the output end of the pump is connected to the input pipe through a conduit.

[0014] From the above, it can be seen that the high-salt wastewater evaporation treatment device provided by the present invention has the ability to grade the evaporation treatment of high-salt wastewater, and adopts low, medium and high temperature temperature gradient classification so that the wastewater can fully absorb heat and evaporate during the treatment process. While ensuring the evaporation effect, energy consumption is reduced, ensuring the smooth progress of the evaporation treatment and ensuring the evaporation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a high-salt wastewater evaporation treatment device proposed by the present invention;

[0016] Figure 2 This is a schematic cross-sectional view of a high-salt wastewater evaporation treatment device proposed by the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of a graded evaporation module of a high-salt wastewater evaporation treatment device proposed by the present invention;

[0018] Figure 4 This is a schematic diagram of the evaporation plate structure of a high-salt wastewater evaporation treatment device proposed by the present invention;

[0019] Figure 5 This is a schematic diagram of the knocking rod structure of a high-salt wastewater evaporation treatment device proposed by the present invention;

[0020] Figure 6 This is a schematic diagram of the belt structure of a high-salt wastewater evaporation treatment device proposed by the present invention;

[0021] Figure 7 This is a schematic structural diagram of the heat exchange and condensation module of a high-salt wastewater evaporation treatment device proposed in the present invention.

[0022] In the figure: 1. Box; 2. Observation window; 3. Liquid inlet hopper; 4. Exhaust pipe; 5. Evaporation plate; 6. Stationary cylinder; 7. Discharge pipe; 8. Staged evaporation module; 801. Shaft rod 1; 802. Shaft rod 2; 803. Shaft rod 3; 804. Rectangular frame; 805. Mounting frame; 806. Fan; 807. Guide plate; 808. Baffle; 809. Speed reducer; 810. Heating tube; 811. Fixing frame; 812. Knocking rod; 813. Fixing ring; 814. Spring; 815. Counterweight; 816. Rack; 817. Motor 1; 818. Transmission gear; 819. Transmission roller;

[0023] 820, belt; 821, synchronous gear 1; 822, motor 2; 823, synchronous gear 2;

[0024] 9. Heat exchange condensation module; 901. Drain pipe; 902. Lifting plate; 903. Serpentine pipe;

[0025] 904, heat collecting box; 905, heat diffusion plate; 906, input pipe; 907, output pipe; 908, pump; 909, collecting box; 10, control valve. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] The high-salt wastewater evaporation treatment device disclosed in the present invention is mainly used in scenarios where the existing high-salt wastewater evaporation treatment device will increase energy consumption in order to improve the evaporation efficiency.

[0028] Reference Figure 1-Figure 7 , a high-salt wastewater evaporation treatment device, comprising:

[0029] Box 1;

[0030] Observation window 2, which is provided on the box body 1 and has heat-insulating glass inside;

[0031] The liquid inlet hopper 3 is located above the box body 1, and a groove is opened on the upper side of the box body 1, and the exhaust pipe 4 is connected to the groove by bolts;

[0032] Three evaporation plates 5, all of which are located in the box 1, and the three evaporation plates 5 are staggered up and down;

[0033] The bottom of the static cylinder 6 is connected to the bottom inner wall of the box body 1 by bolts. The static cylinder 6 is provided with a discharge pipe 7. One end of the discharge pipe 7 passes through the box body 1 and is located outside the box body 1. A control valve 10 is provided outside the discharge pipe 7.

[0034] The graded evaporation module 8 is located in the housing 1 and outside the evaporation plate 5. The graded evaporation module 8 is used to perform multi-stage evaporation on high-salt wastewater, so that each stage evaporates wastewater of different concentrations.

[0035] The device utilizes the graded evaporation module 8 to grade the evaporation treatment of high-salt wastewater, and adopts low, medium and high temperature gradient classification to enable the wastewater to fully absorb heat and evaporate during the treatment process, while ensuring the evaporation effect, reducing energy consumption, ensuring the smooth progress of the evaporation treatment, and ensuring the evaporation efficiency.

[0036] Reference Figure 3 、 Figure 4 、 Figure 5 and Figure 6In a preferred embodiment, the graded evaporation module 8 includes a shaft 1 801, a shaft 2 802, and a shaft 3 803. The exteriors of the shafts 1 801, 802, and 803 are connected to two symmetrical bosses by bolts. The exteriors of the two bosses located in the same plane are connected to the bottom of the evaporation plate 5 on the same side by bolts. Three circular holes are opened on the exterior of the housing 1. The inner walls of the three circular holes are rotatably connected to the exteriors of the shafts 1 801, 802, and 803 by bearings, respectively. A rectangular frame 804 is connected to the upper side of the evaporation plate 5 by bolts, and a plurality of staggered guide plates are connected to the inner walls of the rectangular frame 804 by bolts. 807; Staggered symmetrical baffles 808 are provided between the multiple guide plates 807 located on the same rectangular frame 804, and three equally spaced speed reduction blocks 809 are connected to the upper side of the evaporation plate 5 by bolts. The speed reduction blocks 809 are located between the guide plates 807. The upper side of the rectangular frame 804 is connected to the mounting frame 805 by bolts, and four symmetrical fans 806 are provided on the mounting frame 805; the bottom of the three evaporation plates 5 are each provided with a notch, and the inner wall of the notch is connected to a heating tube 810 by bolts, and the bottom of the three evaporation plates 5 are each connected to a fixing frame 811 by bolts, and the fixing frame 811 is provided with a circular groove, and the circular groove is slidably connected with a knocking screw. The knock rod 812 has one side in contact with the outside of the evaporation plate 5, and the other side is connected to a counterweight 815 by bolts; the outside of the three knock rods 812 is connected to a fixing ring 813 by bolts, and the side of the fixing ring 813 close to the counterweight 815 is connected to a spring 814 by bolts, and the end of the spring 814 away from the fixing ring 813 is connected to the outside of the fixing frame 811 on the same side by bolts, and the outside of the fixing ring 813 is connected to a rack 816 by bolts, and the bottom of the evaporation plate 5 is connected to a motor 817 by bolts; the output ends of the three motors 817 are connected to a transmission gear 818 through a coupling, and the transmission gear 818 They are all engaged with the rack 816 on the same side, and the outside of the box body 1 is rotatably connected to a round rod through a bearing. The outsides of the round rod, shaft rod 1 801 and shaft rod 3 803 are all connected to transmission rollers 819 through bolts, and the outsides of the three transmission rollers 819 are provided with the same belt 820; the outside of the round rod is connected to synchronous gear 1 821 through bolts, and the outside of the box body 1 is connected to motor 2 822 through bolts, the output end of motor 2 822 is connected to one side of shaft rod 2 802 through a coupling, and the outside of shaft rod 2 802 is connected to synchronous gear 2 823 through bolts, and synchronous gear 2 823 is engaged with synchronous gear 1 821. A heat exchange condensation module 9 is provided on the upper side of the box body 1.

[0037] Specifically, after the wastewater is transported to the evaporation plate 5 on the shaft 1 801 through the liquid inlet hopper 3, the heating tube 810 is started, and low-temperature heating is adopted. The motor 2 822 is started, and the motor 2 822 drives the synchronous gear 1 821 to rotate, thereby causing the belt 820 to drive the transmission roller 819 to rotate, and the inclination angle of the evaporation plate 5 is adjusted to slow down the flow speed of the wastewater between the guide plates 807. The speed reduction block 809 will slow down the flow speed. The wastewater begins to evaporate due to the heat and flows from the lowest point of the rectangular frame 804 to the evaporation plate 5 below. The heating tube 810 below adopts medium temperature to adjust the concentration. The increased wastewater is further heated and eventually flows to the lowest evaporation plate 5. The lowest heating tube 810 uses high temperature to further evaporate the wastewater. Finally, the concentrated wastewater flows into the static cylinder 6. During this process, the motor 1 817 is started, and the transmission gear 818 continuously drives the knocking rod 812 to knock the evaporation plate 5 while rotating, so that the crystals formed by the evaporation of the residual wastewater on the evaporation plate 5 can be separated from the evaporation plate 5. Under the influence of residual heat, the last water in the wastewater evaporates and crystallizes in the static cylinder 6. The control valve 10 is opened to discharge the crystals.

[0038] In a specific application scenario, the graded evaporation module 8 is mainly suitable for the graded evaporation link in the graded evaporation process, that is, the graded evaporation module 8 uses the guide plate 807 and the deceleration block 809 to increase the length of the wastewater movement path, so that the wastewater can fully absorb the heat on the heating tube 810 and increase the evaporation speed. The fan 806 can accelerate the separation speed of water vapor and wastewater. The knocking rod 812, the counterweight block 815 and the rack 816 can be used to separate the crystals formed by the residual wastewater due to heat from the evaporation plate 5, thereby avoiding the crystals from agglomerating on the evaporation plate 5 and affecting the smooth flow of wastewater, thereby ensuring the smoothness of the evaporation treatment process.

[0039] Reference Figure 7In a preferred embodiment, the heat exchange and condensing module 9 includes a collection box 909, the bottom of which is connected to the upper side of the housing 1 by bolts. A circular hole is opened on the upper side of the collection box 909, and the inner wall of the circular hole is connected to the outside of the liquid inlet hopper 3 by bolts. A drain pipe 901 is provided in the collection box 909, one end of which passes through the housing 1 and enters the housing 1, and the drain pipe 901 is located above the evaporation plate 5. A lifting plate 902 is connected to the inner wall of the bottom of the collection box 909 by bolts, and the outer side of the lifting plate 902 is in contact with the outer side of the drain pipe 901. A serpentine tube 903 is provided in the collecting box 909, and the two ends of the serpentine tube 903 are respectively connected to the input pipe 906 and the output pipe 907 by bolts, and the ends of the input pipe 906 and the output pipe 907 away from the collecting box 909 pass through the outside of the exhaust pipe 4 and are connected to the same heat collecting box 904 by bolts. The heat collecting box 904 is located in the exhaust pipe 4; the outside of the heat collecting box 904 is connected to multiple equally distributed heat spreaders 905 by bolts, and the upper side of the box body 1 is connected to a pump 908 by bolts, and the output end of the pump 908 is connected to the input pipe 906 through a conduit.

[0040] Specifically, when the water vapor is discharged to the outside of the box body 1 through the exhaust pipe 4, the pump 908 is started. The pump 908 circulates the heat transfer oil in the heat collecting box 904 in the serpentine pipe 903 and the heat collecting box 904 through the input pipe 906 and the output pipe 907. Therefore, when the liquid inlet hopper 3 transports low-temperature wastewater to the evaporation plate 5, the temperature of the low-temperature wastewater can be transported to the heat spreader 905, and heat exchange is carried out with the high-temperature steam, so that the serpentine pipe 903 can preheat the wastewater.

[0041] In specific application scenarios, the heat exchange condensation module 9 is mainly suitable for the heat exchange condensation link in the heat exchange condensation process, that is, the heat exchange condensation module 9 uses the heat collecting box 904 and the serpentine tube 903 to enable the device to preheat the wastewater with the heat in the high-temperature steam generated by evaporation, thereby reducing the energy consumption load in the evaporation process and significantly reducing energy costs by recycling waste heat.

[0042] Working principle: After the wastewater is transported to the evaporation plate 5 on the shaft 1 801 through the liquid inlet hopper 3, the heating tube 810 is started, low-temperature heating is adopted, and the motor 2 822 is started. The motor 2 822 drives the synchronous gear 1 821 to rotate, thereby making the belt 820 drive the transmission roller 819 to rotate, and adjust the inclination angle of the evaporation plate 5 to slow down the flow speed of the wastewater between the guide plates 807. The speed reduction block 809 will slow down the flow speed. The wastewater begins to evaporate due to the heat and flows from the lowest point of the rectangular frame 804 to the evaporation plate 5 below. The heating tube 810 below adopts medium temperature to further heat the wastewater with increased concentration, and finally flows to the evaporation plate 5 at the lowest point. The heating tube 810 at the lowest point adopts high temperature to further evaporate the wastewater. Finally, the concentrated wastewater flows into the static cylinder 6. In this process , start the motor 817, so that the transmission gear 818 rotates and continuously drives the knocking rod 812 to knock the evaporation plate 5, so that the crystals formed by the evaporation of the residual wastewater on the evaporation plate 5 can be separated from the evaporation plate 5. Under the influence of residual heat, the last water in the wastewater evaporates and crystallizes in the static cylinder 6. Open the control valve 10 to discharge the crystals. When the water vapor is discharged to the outside of the box body 1 through the exhaust pipe 4, start the pump 908. The pump 908 circulates the heat transfer oil in the heat collecting tank 904 in the serpentine pipe 903 and the heat collecting tank 904 through the input pipe 906 and the output pipe 907. Therefore, when the liquid inlet hopper 3 transports low-temperature wastewater to the evaporation plate 5, the temperature of the low-temperature wastewater can be transported to the heat soaking plate 905 to exchange heat with the high-temperature steam, so that the serpentine pipe 903 can preheat the wastewater.

[0043] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A high-salt wastewater evaporation treatment device, characterized in that: include: Box (1); An observation window (2), the observation window (2) being provided on the box body (1), and heat-insulating glass being provided in the observation window (2); A liquid inlet hopper (3), the liquid inlet hopper (3) is located above the box body (1), and a groove is provided on the upper side of the box body (1), and a steam exhaust pipe (4) is fixedly connected to the groove; Three evaporation plates (5), all of which are located in the box (1), and the three evaporation plates (5) are staggered up and down; a stationary cylinder (6), the bottom of the stationary cylinder (6) being fixedly connected to the bottom inner wall of the box body (1), a discharge pipe (7) being provided on the stationary cylinder (6), one end of the discharge pipe (7) passing through the box body (1) and being located outside the box body (1), and a control valve (10) being provided outside the discharge pipe (7); A graded evaporation module (8) is located in the housing (1) and outside the evaporation plate (5). The graded evaporation module (8) is used to perform multi-stage evaporation on high-salinity wastewater, so that each stage performs evaporation treatment on wastewater of different concentrations.

2. A high-salt wastewater evaporation treatment device according to claim 1, characterized in that: The graded evaporation module (8) comprises a shaft rod 1 (801), a shaft rod 2 (802) and a shaft rod 3 (803); the exteriors of the shaft rod 1 (801), the shaft rod 2 (802) and the shaft rod 3 (803) are fixedly connected to two symmetrical bosses; the exteriors of the two bosses located in the same plane are fixedly connected to the bottom of the evaporation plate (5) on the same side; three circular holes are opened on the exterior of the box body (1); the inner walls of the three circular holes are movably connected to the exteriors of the shaft rod 1 (801), the shaft rod 2 (802) and the shaft rod 3 (803), respectively; the upper side of the evaporation plate (5) is fixedly connected to a rectangular frame (804); the inner wall of the rectangular frame (804) is fixedly connected to a plurality of mutually staggered guide plates (807).

3. A high-salt wastewater evaporation treatment device according to claim 2, characterized in that: Staggered and symmetrical baffles (808) are provided between the plurality of guide plates (807) located on the same rectangular frame (804), and three equally spaced speed reduction blocks (809) are fixedly connected to the upper side of the evaporation plate (5), and the speed reduction blocks (809) are located between the guide plates (807). The upper side of the rectangular frame (804) is fixedly connected to a mounting frame (805), and four symmetrical fans (806) are provided on the mounting frame (805).

4. A high-salt wastewater evaporation treatment device according to claim 3, characterized in that: The bottoms of the three evaporation plates (5) are each provided with a notch, the inner walls of the notch are each fixedly connected to a heating tube (810), and the bottoms of the three evaporation plates (5) are each fixedly connected to a fixing frame (811), the fixing frame (811) is each provided with a circular groove, a knocking rod (812) is slidably connected in the circular groove, one side of the knocking rod (812) contacts the outside of the evaporation plate (5), and the other side is fixedly connected to a counterweight (815).

5. The high-salt wastewater evaporation treatment device according to claim 4, characterized in that: The outsides of the three knocking rods (812) are all fixedly connected to a fixing ring (813), the side of the fixing ring (813) close to the counterweight (815) is all fixedly connected to a spring (814), the end of the spring (814) away from the fixing ring (813) is all fixedly connected to the outside of the fixing frame (811) on the same side, and the outside of the fixing ring (813) is all fixedly connected to a rack (816), and the bottom of the evaporation plate (5) is all fixedly connected to a motor 1 (817).

6. The high-salt wastewater evaporation treatment device according to claim 5, characterized in that: The output ends of the three motors (817) are all connected to transmission gears (818) through couplings, and the transmission gears (818) are all meshed with the racks (816) on the same side. The outside of the box (1) is movably connected to a round rod, and the outsides of the round rod, shaft rod one (801) and shaft rod three (803) are all fixedly connected to transmission rollers (819), and the outsides of the three transmission rollers (819) are provided with the same belt (820).

7. The high-salt wastewater evaporation treatment device according to claim 6, characterized in that: The outside of the round rod is fixedly connected to a synchronous gear 1 (821), the outside of the box body (1) is fixedly connected to a motor 2 (822), the output end of the motor 2 (822) is connected to one side of the shaft 2 (802) through a coupling, and the outside of the shaft 2 (802) is fixedly connected to a synchronous gear 2 (823), the synchronous gear 2 (823) is meshed with the synchronous gear 1 (821), and a heat exchange condensation module (9) is provided on the upper side of the box body (1).

8. The high-salt wastewater evaporation treatment device according to claim 7, characterized in that: The heat exchange condensation module (9) comprises a collection box (909), the bottom of the collection box (909) is fixedly connected to the upper side of the box body (1), a circular hole is opened on the upper side of the collection box (909), the inner wall of the circular hole is fixedly connected to the outside of the liquid inlet hopper (3), a drain pipe (901) is provided in the collection box (909), one end of the drain pipe (901) passes through the box body (1) and enters the box body (1), and the drain pipe (901) is located above the evaporation plate (5), and a lifting plate (902) is fixedly connected to the inner wall of the bottom of the collection box (909), and the outer side of the lifting plate (902) is in contact with the outer side of the drain pipe (901).

9. The high-salt wastewater evaporation treatment device according to claim 8, characterized in that: A serpentine tube (903) is provided in the collecting box (909), and the two ends of the serpentine tube (903) are fixedly connected to an input tube (906) and an output tube (907), respectively. The ends of the input tube (906) and the output tube (907) away from the collecting box (909) are both fixedly connected to the same heat collecting box (904) through the outside of the exhaust pipe (4), and the heat collecting box (904) is located in the exhaust pipe (4).

10. The high-salt wastewater evaporation treatment device according to claim 9, characterized in that: The exterior of the heat collecting box (904) is fixedly connected to a plurality of equally spaced heat diffusion plates (905), and the upper side of the box body (1) is fixedly connected to a pump (908), the output end of the pump (908) being connected to the input pipe (906) via a conduit.

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