High-salinity wastewater discharge treatment device

Abstract

A high-salinity wastewater discharge treatment device comprises an evaporation box 1, an opening is formed in the front side of the evaporation box 1, a transparent light receiving plate 2 is fixedly connected to the opening in the front side of the evaporation box 1, a plurality of circulating rotating rollers 3 are rotationally connected in the evaporation box 1 and arranged in parallel, at least one circulating rotating roller 3 is connected with a driving mechanism, and the circulating rotating rollers 3 jointly support a crystallization conveying belt 4. A water absorption pad 16 is arranged on one side of the crystallization conveying belt 4; wherein the two circulating rotating rollers 3 are positioned in front of the plurality of circulating rotating rollers 3 and are respectively positioned at the upper end and the lower end in the evaporation box 1, the crystallization conveying belt 4 is supported by the two circulating rotating rollers 3 at the front part, and the water absorption pad 16 corresponds to the transparent light receiving plate 2; a salt discharging opening 6 is formed in the upper end of the rear side of the evaporation box 1, a salt scraping plate 5 is fixedly connected to the bottom of the salt discharging opening 6, and the front end of the salt scraping plate 5 abuts against the crystallization conveying belt 4 and the water absorption pad 16; a wastewater inlet valve 7 is arranged on the side of the evaporation box 1; an exhaust port 17 is formed in the top of the evaporation box 1.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a high-salinity wastewater discharge treatment device. Background Technology

[0002] High-salinity wastewater refers to wastewater with a total salt content of at least 1% by mass, including wastewater from thermal power plants, chemical plants, and the extraction and processing of oil and natural gas. High-salinity wastewater poses many hazards:

[0003] 1) This leads to high osmotic pressure in the water, causing microbial cells to dehydrate and die;

[0004] 2) Activated sludge is prone to floating and being lost, which seriously affects the purification effect of the biological treatment system;

[0005] 3) It leads to increased mineralization of river water and soil compaction;

[0006] 4) It causes corrosion of pipes and other parts of the water, and produces foul-smelling gases.

[0007] Zero discharge of high-salinity wastewater currently relies primarily on thermal evaporation technology, including flue gas evaporation and evaporative crystallization. This method is not only costly and requires a large footprint, but also consumes energy for heating to completely evaporate the water into steam. Because thermal evaporation is affected by unit load fluctuations, incomplete evaporation of high-salinity wastewater can easily lead to the formation of complex and difficult-to-clean scale such as calcium sulfate and silicates adhering to the inner walls, clogging the inlet or outlet and causing equipment malfunctions and shutdowns. Therefore, thermal evaporation technology not only has low wastewater treatment efficiency and high investment and operating costs, but also risks affecting the normal operation of downstream equipment, thus impacting the overall system operation. To address this, we propose a high-salinity wastewater discharge treatment device. Utility Model Content

[0008] To address the aforementioned problems, this utility model provides a high-salinity wastewater discharge treatment device.

[0009] The purpose of this utility model is achieved in the following manner: a high-salt wastewater discharge treatment device includes an evaporation box 1, an opening on the front side of the evaporation box 1, a transparent light-receiving plate 2 fixedly connected to the opening on the front side of the evaporation box 1, a plurality of circulating rollers 3 rotatably connected inside the evaporation box 1, the plurality of circulating rollers 3 being arranged in parallel, at least one circulating roller 3 being connected to a drive mechanism, the plurality of circulating rollers 3 jointly supporting a crystallization conveyor belt 4, and a water-absorbing pad 16 being provided on one side of the crystallization conveyor belt 4.

[0010] Two circulating rollers 3 are located in front of several circulating rollers 3 and are located at the upper and lower ends of the evaporation box 1, respectively. The crystallization conveyor belt 4 is supported by the two circulating rollers 3 at the front and the water-absorbing pad 16 corresponds to the transparent light-receiving plate 2.

[0011] A salt discharge port 6 is provided at the upper rear side of the evaporator 1. A salt scraper 5 is fixedly connected to the bottom of the salt discharge port 6. The front end of the salt scraper 5 abuts against the crystallization conveyor belt 4 and the water absorption pad 16.

[0012] Wastewater inlet valve 7 is installed on the side of evaporator 1;

[0013] An exhaust port 17 is provided on the top of the evaporator 1.

[0014] Furthermore, a side box 9 is provided on each side of the evaporator 1, and at least one of the circulating rollers 3 is a hollow structure with both ends connected. The two ends of the hollow circulating roller 3 pass through the side wall of the evaporator 1 and extend into the side box 9.

[0015] One of the side boxes 9 is fixedly connected to a hot water delivery pump 11, and the output end of the hot water delivery pump 11 is connected to a parallel main pipe 10, which is connected to one end of at least one hollow circulating roller 3;

[0016] Another side box 9 is fixedly connected to a drainage pump 12, the input end of which is connected to another parallel main pipe 10, which is connected to the other end of at least one hollow circulating roller 3.

[0017] Furthermore, a drive motor 18 is fixedly connected inside one of the side boxes 9, and the drive motor 18 is connected to at least one circulating roller 3 through a chain drive mechanism.

[0018] Furthermore, the bottom of the evaporator 1 is fixedly connected to a blower base 13, and at least one blower 14 is installed inside the blower base 13. The blower base 13 has an opening on its side, and at least one air inlet pipe 15 is fixedly connected to the top of the blower base 13. The bottom end of the air inlet pipe 15 is connected to the inside of the blower base 13, and the top end of the air inlet pipe 15 passes through the bottom of the evaporator 1 and extends into the evaporator 1. A liquid level sensor 8 is installed inside the evaporator 1. The liquid level sensor 8 is used to detect that the liquid level in the evaporator 1 is not higher than the top end of the air inlet pipe 15.

[0019] The crystallization conveyor belt 4 is a black PVC plastic belt, and the water-absorbing pad 16 refers to a cotton pad fixedly connected to one side of the crystallization conveyor belt 4, with water-absorbing fiber ropes fixed on the surface of the cotton pad.

[0020] Compared with the existing technology, this utility model is equipped with an evaporation box, which absorbs high-salt wastewater through a crystallization conveyor belt. The crystallized salt in the wastewater is separated by light and precipitated on the water-absorbing pad, and then scraped off the evaporation box by a salt scraper. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a side sectional view of the evaporator;

[0023] Figure 3 This is a front sectional view of the present invention;

[0024] Figure 4 This is a cross-sectional structural diagram of the concentrated crystallization zone in this utility model.

[0025] The components include: 1. Evaporation box; 2. Transparent light-receiving plate; 3. Circulating roller; 4. Crystallization conveyor belt; 5. Salt scraper; 6. Salt discharge port; 7. Wastewater inlet valve; 8. Non-contact liquid level sensor; 9. Side box; 10. Parallel main pipeline; 11. Hot water transfer pump; 12. Drain pump; 13. Blower base; 14. Blower; 15. Air inlet pipe; 16. Water absorption pad; 17. Exhaust port; and 18. Drive motor. Detailed Implementation

[0026] 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.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] As attached Figure 1-2 As shown, a high-salt wastewater discharge treatment device includes an evaporator 1 with an opening on the front side. A transparent light-receiving plate 2 is fixedly connected to the opening on the front side of the evaporator 1, so that the evaporator 1 forms a transparent light-receiving structure on the front panel. Several circulating rollers 3 are rotatably connected inside the evaporator 1. The several circulating rollers 3 are arranged in parallel. At least one circulating roller 3 is connected to a drive mechanism. The several circulating rollers 3 jointly support a crystallization conveyor belt 4. A water-absorbing pad 16 is provided on one side of the crystallization conveyor belt 4.

[0029] Two of the circulating rollers 3 are located in front of several circulating rollers 3 and are respectively located at the upper and lower ends of the evaporator 1, i.e. Figure 2As shown in the figure, the circulating rollers 3 located in the upper left and lower left are further forward than the other circulating rollers 3. The crystallization conveyor belt 4 is supported by the two circulating rollers 3 at the front and the water-absorbing pad 16 corresponds to the transparent light-receiving plate 2. Preferably, the part of the crystallization conveyor belt 4 supported by the two circulating rollers 3 at the front is parallel to the transparent light-receiving plate 2 and the distance is less than 50mm.

[0030] Preferably, the circulating rollers 3 at the upper and lower ends of the front side are positioned forward, and the remaining multiple circulating rollers 3 are symmetrically arranged front and back, with the multiple circulating rollers 3 arranged in an S-shape and coiled around the crystallization conveyor belt 4.

[0031] A salt discharge port 6 is provided at the upper rear side of the evaporator 1. A salt scraper 5 is fixedly connected to the bottom of the salt discharge port 6. The front end of the salt scraper 5 abuts against the crystallization conveyor belt 4 and the water absorption pad 16.

[0032] A wastewater inlet valve 7 is installed on the side of the evaporator 1. The input end of the wastewater inlet valve 7 is connected to the wastewater delivery pump through a pipe, and the output end of the wastewater inlet valve 7 extends into the evaporator 1.

[0033] An exhaust port 17 is provided on the top of the evaporator 1 for the discharge of water vapor.

[0034] Furthermore, such as Figure 3 As shown, a side box 9 is provided on each side of the evaporator 1, and at least one of the circulating rollers 3 is a hollow structure with both ends connected. The two ends of the hollow circulating roller 3 pass through the side wall of the evaporator 1 and extend into the side box 9.

[0035] One of the side boxes 9 is fixedly connected to a hot water delivery pump 11, and the output end of the hot water delivery pump 11 is connected to a parallel main pipe 10, which is connected to one end of at least one hollow circulating roller 3;

[0036] Another side box 9 is fixedly connected to a drainage pump 12, the input end of which is connected to another parallel main pipe 10, which is connected to the other end of at least one hollow circulating roller 3.

[0037] To achieve the above technical solution, the circulating roller 3 has the following two structural options: 1. The circulating roller 3 has shaft heads extending from both ends. Both shaft heads and the circulating roller 3 are hollow structures, allowing the shaft heads at both ends to connect. The shaft heads pass through the evaporator 1 and the side box 9 in sequence and are rotatably connected to the parallel main pipe 10. However, this connection structure may have some leakage problems, but the side box 9 can absorb the leakage. 2. The circulating roller 3 has a double-layer sleeve structure. The outer sleeve is fitted over the inner sleeve and is rotatably connected to the evaporator 1 inside the evaporator 1. The inner sleeve is a hollow structure that passes through the evaporator 1 and the side box 9 in sequence and is fixedly connected to the parallel main pipe 10. This connection structure will not leak, but the cost is higher.

[0038] The parallel main pipe 10 inside the side box 9 can connect the two ends of the circulating roller 3 to the hot water delivery pump 11 and the drain pump 12 respectively. The wastewater that has just been discharged is pumped in through the hot water delivery pump 11 at the bottom outside one side box 9. At this time, the wastewater temperature is high, which heats the circulating roller 3. The wastewater that has cooled down after heat exchange is output through the drain pump 12 at the bottom outside the other side box. The output wastewater can be sent to the wastewater inlet valve 7 for evaporation treatment. This not only improves the evaporation efficiency, but also makes use of high-temperature cooling water to recover and reuse waste heat, which is more energy-saving and environmentally friendly.

[0039] Furthermore, a drive motor 18 is fixedly connected inside one of the side boxes 9, and the drive motor 18 is connected to at least one circulating roller 3 via a chain drive mechanism, for example... Figure 2 The two topmost circulating rollers 3 are solid structures. Both circulating rollers 3 pass through the evaporator 1 and the side box 9 in sequence at the same end and are fixed with driven sprockets. The driven sprockets mesh with the chain, and the chain also meshes with the driving sprocket. The driving sprocket is fixedly connected to the output shaft of the drive motor 18.

[0040] Furthermore, the bottom of the evaporator 1 is fixedly connected to a blower base 13, and at least one blower 14 is installed inside the blower base 13. The blower base 13 has an opening on its side for airflow to enter, and at least one air inlet pipe 15 is fixedly connected to the top of the blower base 13. The bottom end of the air inlet pipe 15 is connected to the inside of the blower base 13, and the top end of the air inlet pipe 15 passes through the bottom of the evaporator 1 and extends into the evaporator 1. A liquid level sensor 8 is installed inside the evaporator 1. The liquid level sensor 8 is used to detect that the liquid level in the evaporator 1 is not higher than the top end of the air inlet pipe 15, so as to prevent wastewater from flowing into the blower base 13 through the air inlet pipe 15.

[0041] The blower 14 can draw in air from the side air inlet, then pump it in through the bottom of the evaporator 1 and pump it out from the top of the air inlet pipe 15, thereby accelerating the air flow efficiency in the evaporator 1 and improving efficiency.

[0042] The liquid level sensor 8 is preferably a non-contact liquid level sensor 8, which is electrically connected by a driver; by monitoring the liquid level through the non-contact liquid level sensor 8, the opening and closing of the wastewater inlet valve 7 is determined to control the liquid level in the evaporator 1, so as to maintain the stability of the liquid level in the evaporator 1 and facilitate the continuous treatment of high-salt wastewater.

[0043] Furthermore, such as Figure 4 As shown, the crystallization conveyor belt 4 is a black PVC plastic belt, especially a black PVC embedded rope plastic belt, which has high structural strength and high light absorption efficiency, and can quickly absorb light and generate heat. The water-absorbing pad 16 refers to a cotton pad fixedly connected to one side of the crystallization conveyor belt 4. The surface of the cotton pad is planted with dense water-absorbing fiber ropes. The water-absorbing fibers can absorb high-salt wastewater, and the rope-like structure facilitates the crystallization and separation of salt in the wastewater.

[0044] The beneficial effects of this utility model are as follows:

[0045] 1. It can continuously separate crystalline salts, has a simple structure, is easy to operate and maintain, and has high processing efficiency.

[0046] 2. The black PVC embedded rope plastic belt of this utility model serves as the main body of the crystallization conveyor belt. It has high structural strength and high light absorption efficiency due to its black color, enabling it to quickly absorb light and generate heat. The water-absorbing pad is a cotton pad with densely planted water-absorbing fiber ropes on its surface. The water-absorbing fibers can absorb high-salt wastewater, and the rope-like structure facilitates the precipitation and separation of crystallized salt in the wastewater. The separated crystallized salt can be recycled.

[0047] 3. The parallel main pipe in the side box of this utility model can connect the two ends of the circulating roller to the hot water delivery pump and the drainage pump respectively. The hot water delivery pump pumps waste hot water from the power plant into multiple circulating rollers to heat the circulating rollers, improve the evaporation efficiency, and can also use high-temperature cooling water to recover and utilize waste heat, resulting in significant energy-saving and environmental protection effects.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A high-salinity wastewater discharge treatment device, characterized in that: Includes an evaporator (1), with an opening at the front of the evaporator (1), a transparent light-receiving plate (2) fixedly connected to the opening at the front of the evaporator (1), and several circulating rollers (3) rotatably connected inside the evaporator (1). The several circulating rollers (3) are arranged in parallel, at least one of the circulating rollers (3) is connected to a drive mechanism, and the several circulating rollers (3) together support a crystallization conveyor belt (4). A water-absorbing pad (16) is provided on one side of the crystallization conveyor belt (4). Two of the circulating rollers (3) are located in front of several circulating rollers (3) and are located at the upper and lower ends of the evaporation box (1) respectively. The crystallization conveyor belt (4) is supported by the two circulating rollers (3) in front and the water-absorbing pad (16) corresponds to the transparent light-receiving plate (2). The evaporator (1) has a salt discharge port (6) at the upper rear side. The bottom of the salt discharge port (6) is fixedly connected to a salt scraper (5). The front end of the salt scraper (5) abuts against the crystallization conveyor belt (4) and the water-absorbing pad (16). A wastewater inlet valve (7) is installed on the side of the evaporator (1); An exhaust port (17) is provided on the top of the evaporator (1).

2. The high-salinity wastewater discharge treatment device as described in claim 1, characterized in that: A side box (9) is provided on each side of the evaporator (1), and at least one of the circulating rollers (3) is a hollow structure with both ends connected. The two ends of the hollow circulating roller (3) pass through the side wall of the evaporator (1) and extend into the side box (9). One of the side boxes (9) is fixedly connected to a hot water delivery pump (11), the output end of which is connected to a parallel main pipe (10), which is connected to one end of at least one hollow circulating roller (3); One of the side boxes (9) is fixedly connected to a drainage pump (12), the input end of which is connected to another parallel main pipe (10), which is connected to the other end of at least one hollow circulating roller (3).

3. The high-salinity wastewater discharge treatment device as described in claim 2, characterized in that: One of the side boxes (9) is fixedly connected to a drive motor (18), and the drive motor (18) is connected to at least one circulating roller (3) through a chain drive mechanism.

4. The high-salinity wastewater discharge treatment device as described in claim 1, characterized in that: The bottom of the evaporator (1) is fixedly connected to the blower base (13), and at least one blower (14) is installed inside the blower base (13). The blower base (13) has an opening on the side, and at least one air inlet pipe (15) is fixedly connected to the top of the blower base (13). The bottom end of the air inlet pipe (15) is connected to the inside of the blower base (13), and the top end of the air inlet pipe (15) passes through the bottom of the evaporator (1) and extends into the evaporator (1). A liquid level sensor (8) is installed inside the evaporator (1). The liquid level sensor (8) is used to detect that the liquid level in the evaporator (1) is not higher than the top end of the air inlet pipe (15).

5. The high-salinity wastewater discharge treatment device as described in claim 1, characterized in that: The crystallization conveyor belt (4) is a black PVC plastic belt, and the water-absorbing pad (16) is a cotton pad fixedly connected to one side of the crystallization conveyor belt (4), with water-absorbing fiber ropes fixed on the surface of the cotton pad.

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