Tower-type evaporation zero-discharge equipment for sewage treatment

Abstract

The utility model discloses sewage treatment tower type evaporation zero discharge equipment, which comprises a high-pressure circulating water pump and a circular circulating water tank, and further comprises two groups of upright posts which are concentrically and annularly distributed, a plurality of evaporation screens which are distributed in a vortex manner are arranged above the circulating water tank along the circumference, and the evaporation screens are of rectangular plate-shaped structures and are uniformly distributed along the circumference; the top of the evaporation screen is provided with a conical gas collecting hood, the top of the gas collecting hood is provided with a hood used for exhausting, the lower portion of the gas collecting hood is provided with a spraying assembly, the input end of the high-pressure circulating water pump is connected with the circulating water pool, the output end of the high-pressure circulating water pump is communicated to the spraying assembly, and the annularly-distributed stand columns are located on the outer sides of the circulating water pool and the evaporation screen. An air guide plate is installed between every two vertical columns which are opposite in the radial direction, vertical solar vacuum tubes are installed on the outer side of the evaporation screen, the spraying assembly is connected with branch tubes to the solar vacuum tubes respectively, ports of the solar vacuum tubes face upwards, and the building and using cost of the device is low.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to sewage treatment tower-type evaporation zero-emission equipment. Background Art

[0002] The zero-discharge process for wastewater refers to a wastewater treatment method in which wastewater is treated with an appropriate combination of technologies and then reused in the production process. After treatment with the zero-discharge process, no liquid pollutants are discharged into the environment, and the pollutants concentrated and solidified during the treatment process are recycled or sent to a waste treatment plant for further treatment. The conventional zero-discharge process for COD wastewater includes a membrane concentration system and a crystallization system. The wastewater is first concentrated through a membrane concentration system, and then the salt in the concentrated concentrated water is crystallized and recovered. The concentrated fresh water and crystallized condensate produced in the process can be reused in industrial production, realizing resource recycling. However, this method requires large initial construction and equipment investment, and is suitable for enterprises that generate large amounts of wastewater. For enterprises that generate less wastewater, the cost of use is relatively high. Utility Model Content

[0003] The purpose of the utility model is to provide a sewage treatment tower-type evaporation zero-emission equipment to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a sewage treatment tower-type evaporation zero-emission equipment, comprising a high-pressure circulating water pump and a circular circulating water pool, and also comprising two groups of columns distributed in a concentric annular manner, wherein a plurality of vortex-distributed evaporation screens are installed along the circumference above the circulating water pool, the evaporation screen is a rectangular plate-shaped structure and is evenly distributed along the circumference, a conical air accumulation hood is provided on the top of the evaporation screen, a wind hood for exhaust is installed on the top of the air accumulation hood, a spray assembly is provided at the lower part of the air accumulation hood, the input end of the high-pressure circulating water pump is connected to the circulating water pool, and the output end of the high-pressure circulating water pump is connected to the spray assembly, the annularly distributed columns are located on the outside of the circulating water pool and the evaporation screen, and an air guide plate is installed between the two radially opposite columns, a vertical solar vacuum tube is installed on the outside of the evaporation screen, the spray assembly is connected to branch pipes to each solar vacuum tube respectively, and the port of the solar vacuum tube faces upward.

[0005] Preferably, the upper end of the air guide plate is higher than the evaporation screen, the angle between two adjacent air guide plates is 45°, and the number of the evaporation screens is more than twice the number of the air guide plates.

[0006] Preferably, a soft film roof is provided on the outer side of the upper portion of the gas accumulation hood.

[0007] Compared with the existing technology, the beneficial effects of the utility model are: spraying wastewater onto the surface of the evaporation screen to form a film, using the radially distributed wind guide plates on the periphery to introduce natural wind, the natural wind flows inward from the area between the two wind guide plates to form a narrow tube effect, increasing the wind speed to blow to the evaporation screen, promoting the evaporation of wastewater on the evaporation screen, COD crystals in the water body adhere to the surface of the evaporation screen, continue to be completely oxidized and decomposed into harmless residues that fall off, achieving zero emissions. This equipment uses natural wind to promote evaporation and crystallization, consumes less energy, and has low operating costs. In addition, the structure of this equipment is simple and the construction and manufacturing costs are also low. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic cross-sectional view of the utility model;

[0009] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0010] In the figure: 1. High-pressure circulating water pump; 2. Spray assembly; 3. Gas hood; 4. Soft film roof; 5. Wind hood; 6. Solar vacuum tube; 7. Circulating water pool; 8. Wind guide plate; 9. Evaporation screen; 10. Column. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0012] See also Figure 1-2 The utility model provides a technical solution: a tower-type evaporation zero-emission device for sewage treatment, comprising a high-pressure circulating water pump 1 and a circular circulating water pool 7, and also comprising two groups of columns 10 distributed in a concentric ring shape. The columns 10 are cement columns and the lower ends are buried in the ground for fixation. A plurality of vortex-distributed evaporation screens 9 (made of composite materials) are installed along the circumference above the circulating water pool 7. The evaporation screens 9 are rectangular plate-like structures and are evenly distributed along the circumference. The air intake between the evaporation screens 9 can form a vortex in the middle. A conical air hood 3 is provided on the top of the evaporation screen 9. A soft film roof 4 is provided on the upper outer side of the air hood 3. The soft film roof 4 is transparent, and sunlight can shine to the lower part to promote the evaporation of wastewater. A hood 5 for exhaust is installed on the top of the air hood 3. The evaporated water vapor is discharged through the air hood 3 and the hood 5. A spray assembly 2 is provided at the lower part of the gas accumulation hood 3. The input end of the high-pressure circulating water pump 1 is connected to the circulating water pool 7, and the output end of the high-pressure circulating water pump 1 is connected to the spray assembly 2. The spray assembly 2 consists of a spray pipe and a nozzle installed under the spray pipe.

[0013] The circularly distributed columns 10 are located outside the circulating water pool 7 and the evaporation screen 9. An air guide plate 8 is installed between the two radially opposite columns 10. The upper end of the air guide plate 8 is higher than the evaporation screen 9. The angle between the two adjacent air guide plates 8 is 45°. The air guide plate 8 introduces natural wind into the evaporation screens 9. The high-pressure circulating water pump 1 draws wastewater from the circulating water pool 7 to the spray assembly 2, and then the nozzle hits the evaporation screen 9. The wastewater forms a film on the evaporation screen 9 and evaporates naturally after full contact with the atmosphere. At the same time, it can also play a role in stripping ammonia nitrogen. At the same time, due to full contact with the atmosphere, it also has the ability to degrade COD. The COD substances in the water body gradually crystallize on the surface of the evaporation screen 9 and continue to be completely oxidized and decomposed into harmless residues that fall off.

[0014] The number of evaporation screens 9 is greater than twice the number of wind guide plates 8. Vertical solar vacuum tubes 6 (which are existing mature products and widely used in solar water heaters) are installed on the outside of the evaporation screens 9. The spray components 2 are connected to the branch pipes of each solar vacuum tube 6 respectively. The ports of the solar vacuum tubes 6 face upward. The circulating water is heated in the solar vacuum tubes 6 and then overflows into the circulating water pool 7. The solar vacuum tubes 6 can ensure that the device can work normally under low temperatures in winter.

[0015] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment tower-type evaporation zero-emission device comprising a high-pressure circulating water pump (1) and a circular circulating water pool (7), characterized in that: The invention also comprises two groups of columns (10) distributed in a concentric annular manner. A plurality of vortex-distributed evaporation screens (9) are installed along the circumference above the circulating water pool (7). The evaporation screens (9) are rectangular plate-shaped structures and are evenly distributed along the circumference. A conical gas hood (3) is provided on the top of the evaporation screen (9). A hood (5) for exhaust is installed on the top of the gas hood (3). A spray assembly (2) is provided at the bottom of the gas hood (3). The input end of the high-pressure circulating water pump (1) is connected to the input end of the high-pressure circulating water pump (1). The invention relates to a solar energy storage device and a solar energy storage device. The solar energy storage device and the solar energy storage device are connected to a circulating water pool (7), the output end of the high-pressure circulating water pump (1) is connected to the spray assembly (2), the annularly distributed columns (10) are located outside the circulating water pool (7) and the evaporation screen (9), an air guide plate (8) is installed between two radially opposite columns (10), a vertical solar energy vacuum tube (6) is installed outside the evaporation screen (9), the spray assembly (2) is respectively connected to each solar energy vacuum tube (6) through a branch pipe, and the port of the solar energy vacuum tube (6) faces upward.

2. The sewage treatment tower evaporation zero-emission equipment according to claim 1 is characterized in that: The upper end of the air guide plate (8) is higher than the evaporation screen (9), the angle between two adjacent air guide plates (8) is 45°, and the number of the evaporation screens (9) is more than twice the number of the air guide plates (8).

3. The sewage treatment tower evaporation zero-emission equipment according to claim 1, characterized in that: A soft film roof (4) is provided on the outer side of the upper portion of the gas accumulation hood (3).

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