A wastewater zero discharge drying and solidifying device

Abstract

The utility model provides a kind of drying solidification device of wastewater zero emission, including solidification tower and cloth bag dust collector, and the top side between solidification tower and cloth bag dust collector is connected with communicating pipeline, the side of solidification tower is communicated with drying heating pipeline, heating fan is installed on drying heating pipeline, and the side of heating fan is installed with air blower, the top center of solidification tower is installed with booster pump, booster pump is connected with particle pre-filtering assembly by pipeline one, another end of particle pre-filtering assembly is connected with water pump by pipeline two, and particle pre-filtering assembly and water pump are all installed on the mounting plate fixedly connected with solidification tower, the top side of cloth bag dust collector is equipped with L-shaped exhaust pipe.The utility model has the beneficial effects as follows, the utility model structure is simple, realizes the secondary treatment to sewage, avoids the problem that wastewater appears not completely evaporated to cause pollution, and particle in sewage can be removed before sewage atomization, avoid nozzle blockage.

Description

Technical Field

[0001] This utility model is a drying and curing device with zero wastewater discharge, belonging to the field of wastewater discharge technology. Background Technology

[0002] High-salinity wastewater refers to wastewater with a total salt content of at least 1% by mass. It mainly originates from chemical plants and the extraction and processing of oil and natural gas. This type of wastewater contains a variety of substances (including salt, oil, organic heavy metals, and radioactive materials). Currently, industrial water consumption accounts for 20% of the national total, with the main high water-consuming industries being thermal power generation, textiles, manufacturing, steel, and petrochemicals.

[0003] For example, Chinese patent document CN214141670U discloses a terminal solidification system for zero-discharge wastewater, including a wastewater buffer tank, a wastewater transfer pump, a wastewater atomizing device, and a drying evaporation tower. The device atomizes the concentrated and reduced-volume wastewater with compressed air, then leads a portion of the flue gas to a separate spray drying tower, and finally sprays the wastewater into the drying evaporation tower using the wastewater atomizing device. The heat of the flue gas is used to evaporate the atomized wastewater. However, there are still some shortcomings. The wastewater is sprayed directly after atomization. When the atomized wastewater cannot be completely evaporated instantly, the atomized wastewater will accumulate on the ash conveying device, continuing to cause pollution. At the same time, there is no structure to filter particulate matter before atomizing the wastewater, which can easily lead to clogging of the atomizing nozzles and affect the atomization effect of the wastewater. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a drying and curing device with zero wastewater discharge.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A wastewater zero-discharge drying and curing device includes a curing tower and a bag filter. A connecting pipe is provided between the top of the curing tower and the bag filter. A drying heating pipe is connected to one side of the curing tower. A heating fan is installed on the drying heating pipe, and a blower is installed on one side of the heating fan. A booster pump is installed at the center of the top of the curing tower. The booster pump is connected to a particle pre-filter assembly through a pipe. The other end of the particle pre-filter assembly is connected to a water pump through a pipe. Both the particle pre-filter assembly and the water pump are mounted on a mounting plate that is fixedly connected to the curing tower. An L-shaped exhaust pipe is provided on one side of the top of the bag filter.

[0006] Furthermore, an atomizer is installed inside the curing tower, and several atomizing nozzles are installed at the bottom of the atomizer. The atomizer is connected to the output end of the booster pump, and a crystallizing rod is installed inside the curing tower below the atomizer.

[0007] Furthermore, the bag filter includes an outer shell, inside which a support partition is fixedly installed, and an induced draft fan is embedded in the center of the support partition, wherein an L-shaped exhaust pipe is installed above the support partition.

[0008] Furthermore, a lower support frame is installed below the induced draft fan inside the outer casing. A dust collector filter bag is installed between the lower support frame and the support partition. The dust collector filter bag is located at the upper end of the connecting pipe. The top of the dust collector filter bag is connected to a venturi tube, which is installed on the inner wall of the outer casing. A conical hopper is installed at the bottom of the outer casing, and a support frame is installed on the outer wall of the outer casing.

[0009] Furthermore, the particle pre-filtration assembly includes a pretreatment housing, a cleaning cover plate is detachably installed on the top of the pretreatment housing, and an inlet water connection sleeve and an outlet water connection sleeve are respectively provided at both ends of the pretreatment housing.

[0010] Furthermore, an L-shaped sealing baffle is installed at one end of the inlet connecting pipe sleeve inside the pretreatment shell. Several drainage holes are opened on the L-shaped sealing baffle, and a baffle is fixed inside the L-shaped sealing baffle. A support partition 2 is integrally connected to one side of the L-shaped sealing baffle. Three sets of filter screens are detachably installed at the bottom of the support partition 2 through the mounting frame, and the mesh diameter of the three sets of filter screens is arranged in descending order.

[0011] Furthermore, both the bottom of the curing tower and the conical hopper are connected to a lower collection box via dust discharge pipes, and a control valve is installed on the dust discharge pipes. A cleaning seal is detachably installed on the lower collection box.

[0012] The beneficial effects of this utility model are: By connecting a pipe between the top side of the curing tower and the bag filter, the gas generated in the curing tower can be transported into the bag filter. A heating fan heats the air, and then a blower, in conjunction with a drying heating pipe, blows the hot air into the curing tower. A water pump, in conjunction with a booster pump, draws wastewater into the atomizer in the curing tower for atomization. With the help of hot air, evaporation is achieved. The atomized water that does not evaporate immediately is sprayed onto the crystallizing rod and evaporated again. When transporting wastewater, the particle pre-filtration component effectively filters particulate matter in the wastewater. An L-shaped exhaust pipe is used to discharge air from the bag filter. This utility model has a simple structure and is easy to use. It realizes secondary treatment of wastewater, avoids pollution caused by incomplete evaporation of wastewater, and removes particulate matter in the wastewater before atomization, preventing nozzle clogging. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a drying and curing device with zero wastewater discharge according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the curing tower in a zero-discharge wastewater drying and curing device of this utility model; Figure 3 This is a schematic diagram of the bag filter in a drying and curing device with zero wastewater discharge according to this utility model. Figure 4 This is a schematic diagram of the particle pre-filtration component in a wastewater zero-discharge drying and curing device of this utility model.

[0015] In the diagram, 1. Solidification tower; 2. Baghouse dust collector; 3. Connecting pipe; 4. Heating fan; 5. Blower; 6. Booster pump; 7. Particle pre-filtration assembly; 8. Water pump; 9. Mounting plate; 10. L-shaped exhaust pipe; 11. Atomizer; 12. Atomizing nozzle; 13. Crystallizing rod; 14. Outer shell; 15. Support partition one; 16. Dust collector filter bag; 17. Lower support frame; 18. Conical hopper; 19. Support frame; 20. Pretreatment shell; 21. Cleaning cover plate; 22. Inlet water connection pipe sleeve; 23. Outlet water connection pipe sleeve; 24. L-shaped sealing baffle; 25. Drain hole; 26. Baffle; 27. Support partition two; 28. Mounting frame; 29. ​​Filter screen; 30. Dust discharge pipe; 31. Control valve; 32. Lower collection box. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4This utility model provides a technical solution for a wastewater zero-discharge drying and curing device, including a curing tower 1 and a bag filter 2. A connecting pipe 3 connects the top side of the curing tower 1 to the bag filter 2. Through this connecting pipe 3, the gas generated inside the curing tower can be transported into the bag filter 2. A drying heating pipe is connected to one side of the curing tower 1, and a heating fan 4 is installed on the drying heating pipe. A blower 5 is installed on one side of the heating fan 4. A booster pump 6 is installed at the center of the top of the curing tower 1. The heating fan 4 heats the air, and the blower 5, in conjunction with the drying heating pipe, blows the hot air into the curing tower 1. Water pump 8, in conjunction with booster pump 6, can pump wastewater into atomizer 11 in solidification tower 1 for atomization. With the help of hot air, evaporation is achieved. The atomized water that does not have time to evaporate instantly is sprayed onto crystallizing rod 13 and evaporated again. Booster pump 6 is connected to particle pre-filter assembly 7 through pipe one. The other end of particle pre-filter assembly 7 is connected to water pump 8 through pipe two. Both particle pre-filter assembly 7 and water pump 8 are installed on mounting plate 9 which is fixedly connected to solidification tower 1. An L-shaped exhaust pipe 10 is provided on one side of the top of bag filter 2. When transporting wastewater, the particle pre-filter assembly 7 can effectively filter particulate matter in the wastewater. The L-shaped exhaust pipe 10 is used for the exhaust of air from bag filter 2.

[0018] See Figure 2 The solidification tower 1 is equipped with an atomizer 11, and several atomizing nozzles 12 are installed at the bottom of the atomizer 11. The atomizer 11 is connected to the output end of the booster pump 6. A crystallizing rod 13 is installed below the atomizer 11 inside the solidification tower 1. The water pump 8, together with the booster pump 6, can pump wastewater into the atomizer 11 in the solidification tower 1 to atomize it. With the help of hot air, the evaporation effect is achieved. The mist that does not have time to evaporate is sprayed onto the crystallizing rod 13 and evaporated again.

[0019] See Figure 3 The baghouse dust collector 2 includes an outer shell 14, inside which a support partition 15 is fixedly installed. An induced draft fan is embedded in the center of the support partition 15. An L-shaped exhaust pipe 10 is installed above the support partition 15. A lower support frame 17 is installed inside the outer shell 14 below the induced draft fan. A dust collector filter bag 16 is installed between the lower support frame 17 and the support partition 15, located at the upper end of the connecting pipe 3. The top of the dust collector filter bag 16 is connected to a venturi tube, which is installed on the inner wall of the outer shell 14. A conical hopper 18 is installed at the bottom of the outer shell 14, and a support frame 19 is installed on the outer wall of the outer shell 14. The dust collector filter bag 16 filters the gas, and the filtered gas is discharged through the induced draft fan and the L-shaped exhaust pipe 10.

[0020] See Figure 4The particle pre-filtration assembly 7 includes a pretreatment housing 20. A cleaning cover 21 is detachably installed on the top of the pretreatment housing 20. An inlet connecting pipe sleeve 22 and an outlet connecting pipe sleeve 23 are respectively provided at both ends of the pretreatment housing 20. An L-shaped sealing baffle 24 is installed at one end of the inlet connecting pipe sleeve 22 inside the pretreatment housing 20. Several drainage holes 25 are opened on the L-shaped sealing baffle 24, and a baffle 26 is fixed inside the L-shaped sealing baffle 24. A second support partition 27 is integrally connected to one side of the L-shaped sealing baffle 24. Three sets of filter screens 29 are detachably installed at the bottom of the second support partition 27 through an installation frame 28, and the mesh diameter of the three sets of filter screens 29 is arranged in descending order. Wastewater enters the pretreatment shell 20 through the inlet connection pipe sleeve 22. The impact force of the water is reduced by the baffle 26 in the L-shaped sealing baffle 24, allowing the water to be discharged from the drain hole 25. Large particles can settle down. Through the effective filtration of the three sets of filter screens 29, small particles in the wastewater can be effectively filtered. Finally, the wastewater is discharged from the outlet connection pipe sleeve 23.

[0021] See Figure 1 The bottoms of both the curing tower 1 and the conical hopper 18 are connected to a lower collection box 32 via dust discharge pipes 30, and a control valve 31 is installed on the dust discharge pipes 30. A cleaning seal is detachably installed on the lower collection box 32. By opening the control valve 31, the dust falling from the curing tower 1 and the conical hopper 18 enters the lower collection box 32.

[0022] In use, a connecting pipe 3 connects the top side of the curing tower 1 to the bag filter 2, allowing the gas generated in the curing tower to be transported into the bag filter 2. A heating fan 4 heats the air, and a blower 5, in conjunction with a drying heating pipe, blows the hot air into the curing tower 1. A water pump 8, in conjunction with a booster pump 6, draws wastewater into the atomizer 11 in the curing tower 1 for atomization. The hot air, combined with the atomization effect, causes the atomized water to evaporate. Any water that doesn't evaporate immediately is sprayed onto the crystallizing rod 13 and evaporated again. When transporting wastewater, the particle pre-filtration component 7 effectively filters particulate matter from the wastewater. An L-shaped exhaust pipe 10 is used to discharge air from the bag filter 2. This invention has a simple structure, is easy to use, and achieves secondary treatment of wastewater, avoiding pollution caused by incomplete evaporation of wastewater. Furthermore, it removes particulate matter from the wastewater before atomization, preventing nozzle clogging.

[0023] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drying and curing device with zero wastewater discharge, characterized in that, The device includes a curing tower (1) and a bag filter (2). A connecting pipe (3) is connected between the top side of the curing tower (1) and the bag filter (2). A drying and heating pipe is connected to one side of the curing tower (1). A heating fan (4) is installed on the drying and heating pipe. A blower (5) is installed on one side of the heating fan (4). A booster pump (6) is installed at the center of the top of the curing tower (1). The booster pump (6) is connected to a particle pre-filter assembly (7) through a pipe. The other end of the particle pre-filter assembly (7) is connected to a water pump (8) through a pipe. The particle pre-filter assembly (7) and the water pump (8) are both installed on a mounting plate (9) that is fixedly connected to the curing tower (1). An L-shaped exhaust pipe (10) is provided on one side of the top of the bag filter (2).

2. The wastewater zero-discharge drying and curing device according to claim 1, characterized in that, The curing tower (1) is equipped with an atomizer (11), and several atomizing nozzles (12) are installed at the bottom of the atomizer (11). The atomizer (11) is connected to the output end of the booster pump (6). A crystallizing rod (13) is installed in the curing tower (1) below the atomizer (11).

3. The wastewater zero-discharge drying and curing device according to claim 2, characterized in that, The bag filter (2) includes an outer shell (14), a support partition (15) is fixedly installed inside the outer shell (14), and an induced draft fan is embedded in the center of the support partition (15), wherein an L-shaped exhaust pipe (10) is installed above the support partition (15).

4. The wastewater zero-discharge drying and curing device according to claim 3, characterized in that, A lower support frame (17) is installed inside the outer shell (14) below the induced draft fan. A dust filter bag (16) is installed between the lower support frame (17) and the support partition (15). The dust filter bag (16) is located at the upper end of the connecting pipe (3). The top of the dust filter bag (16) is connected to a venturi tube. The venturi tube is installed on the inner wall of the outer shell (14). A conical bucket (18) is installed at the bottom of the outer shell (14). A support frame (19) is installed on the outer wall of the outer shell (14).

5. A zero liquid discharge dewatering and curing apparatus for wastewater according to claim 4, wherein, The particle pre-filtration assembly (7) includes a pretreatment housing (20), a cleaning cover plate (21) is detachably installed on the top of the pretreatment housing (20), and an inlet connection pipe sleeve (22) and an outlet connection pipe sleeve (23) are respectively provided at both ends of the pretreatment housing (20).

6. The wastewater zero-discharge drying and curing device according to claim 5, characterized in that, An L-shaped sealing baffle (24) is installed at one end of the inlet connecting pipe sleeve (22) inside the pretreatment housing (20). Several drainage holes (25) are opened on the L-shaped sealing baffle (24), and a baffle (26) is fixed inside the L-shaped sealing baffle (24). A support partition (27) is integrally connected to one side of the L-shaped sealing baffle (24). Three sets of filter screens (29) are detachably installed at the bottom of the support partition (27) through the mounting frame (28), and the mesh diameter of the three sets of filter screens (29) is arranged in descending order.

7. The wastewater zero-discharge drying and curing device according to claim 6, characterized in that, The bottom of both the curing tower (1) and the conical hopper (18) is connected to a lower collection box (32) via a dust discharge pipe (30), and a control valve (31) is installed on the dust discharge pipe (30). A cleaning seal is detachably installed on the lower collection box (32).

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