Energy-saving treatment equipment for high-salinity wastewater

Abstract

The utility model is applicable to the field of wastewater treatment, and provides energy-saving treatment equipment for high-salinity wastewater, which comprises a concentration tank, the concentration tank comprises a tank body and a tank cover, the tank body and the tank cover are fixedly connected through bolts to form a closed container, and the tank body and the tank cover are respectively and fixedly provided with a drain pipe and a water injection port; the heating ring is fixedly mounted in the interlayer at the bottom of the tank body, and the heating ring is electrically connected with an external control circuit through a connecting cable; the condensation assembly comprises a condensation box and a heat exchanger; the heat exchange tube is fixedly mounted on the condensing box, and the output end of the heat exchange tube is fixedly connected with the water filling nozzle. According to the high-salinity wastewater concentration device, the condensation assembly is arranged, high-temperature steam generated by concentration of high-salinity wastewater is used for preheating the wastewater, waste of waste heat in the steam is avoided, heating energy loss during concentration of the high-salinity wastewater is effectively reduced, meanwhile, liquid water generated by condensation is clean in component and can also be used for other procedures of wastewater treatment, and the energy-saving and environment-friendly effects are achieved. Therefore, the water purification demand is reduced, and the loss of water resources is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment, and in particular relates to an energy-saving treatment device for high-salt wastewater. Background Technology

[0002] High-salinity wastewater refers to wastewater containing a high concentration of salts, typically originating from industrial processes such as chemical manufacturing, oil extraction, mining, metallurgy, and food processing. Salts are often used as raw materials, solvents, or byproducts in these industries, resulting in wastewater that often contains large amounts of inorganic salts. Special treatment methods are usually required for this type of wastewater.

[0003] Existing high-salinity wastewater treatment methods typically require further concentration to increase the salt concentration and facilitate subsequent crystallization to extract inorganic salts. However, the concentration step usually involves heating and distillation, which results in a significant loss of heat as steam is released, leading to energy waste. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide an energy-saving treatment device for high-salinity wastewater, which aims to solve the problems mentioned in the background art.

[0005] This utility model embodiment is implemented as follows: an energy-saving high-salinity wastewater treatment device, used for the concentration treatment of high-salinity wastewater, includes:

[0006] A concentration tank for holding high-salinity wastewater to be treated, the concentration tank comprising:

[0007] The tank body and the tank cover are fixed together by bolts to form a sealed container. The tank body and the tank cover are respectively fixed with a drain pipe and a water inlet. The tank cover is also provided with an exhaust pipe for steam discharge.

[0008] A heating coil is fixedly installed in the bottom interlayer of the tank. The heating coil is used to heat the high-salt wastewater. The heating coil is electrically connected to an external control circuit through a connecting cable.

[0009] A condensation assembly for preheating high-salinity wastewater, the condensation assembly comprising:

[0010] The condenser is connected to the concentration tank via an air inlet pipe connected to the exhaust pipe. The liquid outlet of the condenser is fixedly provided with a water outlet, and a control valve for on / off control is fixedly installed inside the water outlet.

[0011] The heat exchange tube is fixedly installed on the condenser box, and its output end is fixedly connected to the water inlet.

[0012] As a further embodiment of this utility model: the heat exchange tube includes a spiral tube located inside the condensation box, with both ends of the spiral tube penetrating through the condensation box and extending to the outside of the condensation box to be fixedly connected to the inlet pipe and the outlet pipe.

[0013] As a further aspect of this utility model: the concentration tank is further provided with a stirring assembly for stirring the high-salt wastewater inside the concentration tank, the stirring assembly comprising:

[0014] The stirring motor is fixedly mounted on the tank lid;

[0015] The stirring shaft is located inside the concentration tank, and its end is fixedly connected to the power output end of the stirring motor;

[0016] The stirring blades are fixedly mounted on the stirring shaft.

[0017] As a further embodiment of this utility model: the stirring blade includes multiple scrapers, and the scrapers are fixedly connected to the stirring shaft through a stirring rod.

[0018] As a further embodiment of this utility model: the stirring rod is configured as a spirally bent "L"-shaped plate, and the stirring rod is closely fitted with the inner wall of the tank.

[0019] As a further embodiment of this utility model: a fixing rod is fixedly installed inside the tank lid, and the stirring shaft movably passes through the fixing rod.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. The present invention provides an energy-saving treatment device for high-salt wastewater. By setting up a condensation component, the high-temperature steam generated by the concentration of high-salt wastewater is used to preheat the wastewater, avoiding the waste of residual heat in the steam and effectively reducing the heating energy loss during the concentration of high-salt wastewater. At the same time, the liquid water generated by condensation is relatively clean and can be used in other processes of wastewater treatment, thereby reducing the demand for purified water and reducing the loss of water resources.

[0022] 2. The energy-saving treatment equipment for high-salt wastewater provided in this embodiment of the utility model can increase the contact area between the heat exchange tube and the steam and high-temperature condensate by using a spirally bent spiral tube, thereby improving the efficiency of heat exchange, thus improving the preheating effect of wastewater and reducing heat conduction loss.

[0023] 3. The high-salt wastewater energy-saving treatment equipment provided in this utility model embodiment uses a stirring motor to drive the stirring blades to stir the high-salt wastewater in the device, which can ensure the uniformity of heating and improve the concentration effect of high-salt wastewater. At the same time, stirring can also reduce local supersaturation of high-salt wastewater, thereby inhibiting crystallization.

[0024] 4. The energy-saving treatment equipment for high-salt wastewater provided in this utility model embodiment uses a stirring rod to scrape the inner wall of the concentration tank during stirring, which can remove the crystal particles generated on the inner wall of the concentration tank due to the concentration of high-salt wastewater, and avoid the accumulation of crystal particles affecting the subsequent cleaning work of the concentration tank. Attached Figure Description

[0025] Figure 1 A three-dimensional structural diagram of an energy-saving high-salinity wastewater treatment device provided for an embodiment of this utility model;

[0026] Figure 2 A partial cross-sectional view of an energy-saving high-salinity wastewater treatment device provided in an embodiment of this utility model;

[0027] Figure 3 A partial cross-sectional view of the condenser assembly of an energy-saving high-salinity wastewater treatment device provided for an embodiment of this utility model;

[0028] Figure 4 A three-dimensional structural diagram of a stirring component for an energy-saving high-salt wastewater treatment device provided in an embodiment of this utility model.

[0029] In the attached diagram: 1. Concentrator, 11. Tank body, 111. Drain pipe, 12. Tank cover, 121. Water inlet, 122. Exhaust pipe, 123. Fixing rod, 13. Heating coil, 131. Connecting cable, 2. Condensation assembly, 21. Condensation box, 211. Air inlet pipe, 212. Water outlet, 213. Control valve, 22. Heat exchange tube, 221. Spiral tube, 222. Water inlet pipe, 223. Water outlet pipe, 3. Stirring assembly, 31. Stirring motor, 32. Stirring shaft, 33. Stirring blade, 331. Scraper, 332. Stirring rod. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0032] Please see Figure 1 and Figure 2 This utility model embodiment provides an energy-saving treatment device for high-salinity wastewater, used for the concentration treatment of high-salinity wastewater, including:

[0033] Concentration tank 1, used to hold high-salinity wastewater to be treated, the concentration tank 1 includes:

[0034] The tank body 11 and the tank cover 12 are fixedly connected by bolts to form a sealed container. The tank body 11 and the tank cover 12 are respectively fixedly provided with a drain pipe 111 and a water inlet 121. The tank cover 12 is also provided with an exhaust pipe 122 for steam discharge.

[0035] Heating coil 13 is fixedly installed in the bottom interlayer of tank 11. Heating coil 13 is used to heat high-salt wastewater. Heating coil 13 is electrically connected to external control circuit through connecting cable 131.

[0036] Condensation assembly 2, used for preheating high-salinity wastewater, the condensation assembly 2 comprising:

[0037] The condenser 21 is connected to the concentration tank 1 via an air inlet pipe 211 connected to the exhaust pipe 122. The liquid outlet end of the condenser 21 is fixedly provided with a water outlet 212, and a control valve 213 for on / off control is fixedly installed inside the water outlet 212.

[0038] The heat exchange tube 22 is fixedly installed on the condenser box 21, and its output end is fixedly connected to the water inlet 121.

[0039] In practical application, high-salt wastewater is introduced into the concentration tank 1 through the heat exchange tube 22 and the water inlet 121. The heating coil 13 is activated to heat the high-salt wastewater in the concentration tank 1, causing the water in the wastewater to evaporate and thus concentrating the high-salt wastewater. The concentrated high-temperature high-salt wastewater is discharged through the drain pipe 111 for further treatment. The high-temperature steam generated by evaporation is injected into the condenser 21 through the exhaust pipe 122 and the connected air inlet pipe 211, thereby exchanging heat with the low-temperature high-salt wastewater in the heat exchange tube 22. The liquid water generated by condensation gathers in the condenser 21 and continues to exchange heat with the low-temperature high-salt wastewater in the heat exchange tube 22. When the condensate temperature is insufficient, the condensate is discharged through the water outlet 212, thus achieving energy saving.

[0040] In this embodiment, the condensation component 2 is used to preheat the wastewater with high-temperature steam generated from the concentration of high-salt wastewater, avoiding the waste of residual heat in the steam and effectively reducing the heating energy loss during the concentration of high-salt wastewater. At the same time, the liquid water generated by condensation is relatively clean and can be used in other processes of wastewater treatment, thereby reducing the demand for purified water and reducing the loss of water resources.

[0041] Please see Figure 2 and Figure 3 In a preferred embodiment of the present invention, the heat exchange tube 22 includes a spiral tube 221 located inside the condenser box 21. The two ends of the spiral tube 221 pass through the condenser box 21 and extend to the outside of the condenser box 21 to be fixedly connected to the inlet pipe 222 and the outlet pipe 223.

[0042] In practical applications, the spiral tube 221 with its spiral bends increases the contact area between the heat exchange tube 22 and the steam and high-temperature condensate, thereby improving the efficiency of heat exchange, enhancing the preheating effect on wastewater, and reducing heat conduction losses.

[0043] Please see Figure 2 and Figure 4 In another preferred embodiment of this utility model, the concentration tank 1 is further provided with a stirring assembly 3 for stirring the high-salt wastewater in the concentration tank 1, the stirring assembly 3 comprising:

[0044] The stirring motor 31 is fixedly mounted on the tank cover 12;

[0045] The stirring shaft 32 is located inside the concentration tank 1, and its end is fixedly connected to the power output end of the stirring motor 31.

[0046] The stirring blade 33 is fixedly installed on the stirring shaft 32.

[0047] In practical application, the stirring motor 31 drives the stirring blades 33 to stir the high-salt wastewater in the device, which can ensure the uniformity of heating and improve the concentration effect of high-salt wastewater. At the same time, stirring can also reduce local supersaturation of high-salt wastewater, thereby inhibiting crystallization.

[0048] Please see Figure 4 In another preferred embodiment of the present invention, the stirring blade 33 includes a plurality of scrapers 331, and the scrapers 331 are fixedly connected to the stirring shaft 32 through the stirring rod 332.

[0049] Furthermore, the stirring rod 332 is configured as a spirally bent "L"-shaped plate, and the stirring rod 332 is closely fitted to the inner wall of the tank 11.

[0050] In practical application, the stirring rod 332 scrapes the inner wall of the concentration tank 1 during stirring, which can remove the crystal particles generated on the inner wall of the concentration tank 1 due to the concentration of high-salt wastewater, and avoid the accumulation of crystal particles affecting the subsequent cleaning of the concentration tank 1.

[0051] Please see Figure 2 In another preferred embodiment of this utility model, a fixing rod 123 is fixedly provided inside the can lid 12, and the stirring shaft 32 movably passes through the fixing rod 123.

[0052] In practical applications, this embodiment uses a fixed rod 123 to assist in the installation and fixation of the stirring shaft 32, thereby improving the stability of the stirring and ensuring the stirring effect.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] Furthermore, it should be understood that 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, and 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. An energy-saving treatment device for high-salinity wastewater, used for the concentration treatment of high-salinity wastewater, characterized in that: include: A concentration tank (1) is used to hold high-salinity wastewater to be treated, the concentration tank (1) comprising: The tank body (11) and the tank cover (12) are connected and fixed by bolts to form a sealed container. The tank body (11) and the tank cover (12) are respectively fixed with a drain pipe (111) and a water inlet (121). The tank cover (12) is also provided with an exhaust pipe (122) for steam discharge. A heating coil (13) is fixedly installed in the bottom interlayer of the tank (11). The heating coil (13) is used to heat the high-salt wastewater. The heating coil (13) is electrically connected to the external control circuit through a connecting cable (131). A condensation assembly (2) for preheating high-salinity wastewater, the condensation assembly (2) comprising: The condenser (21) is connected to the concentration tank (1) through the air inlet pipe (211) connected to the exhaust pipe (122). The condenser (21) has a water outlet (212) fixedly installed at the liquid outlet end. A control valve (213) for on / off control is fixedly installed in the water outlet (212). The heat exchange tube (22) is fixedly installed on the condenser box (21), and its output end is fixedly connected to the water inlet (121).

2. The energy-saving treatment equipment for high-salinity wastewater according to claim 1, characterized in that: The heat exchange tube (22) includes a spiral tube (221) located inside the condenser (21). The two ends of the spiral tube (221) pass through the condenser (21) and extend into the condenser (21) to the outside, where it is fixedly connected to the inlet pipe (222) and the outlet pipe (223).

3. The energy-saving treatment equipment for high-salinity wastewater according to claim 1, characterized in that: The concentration tank (1) is also equipped with a stirring assembly (3) for stirring the high-salt wastewater in the concentration tank (1), the stirring assembly (3) comprising: A stirring motor (31) is fixedly installed on the tank cover (12); The stirring shaft (32) is located inside the concentration tank (1), and its end is fixedly connected to the power output end of the stirring motor (31); The stirring blade (33) is fixedly installed on the stirring shaft (32).

4. The energy-saving treatment equipment for high-salinity wastewater according to claim 3, characterized in that: The stirring blade (33) includes multiple scrapers (331), which are fixedly connected to the stirring shaft (32) via a stirring rod (332).

5. The energy-saving treatment equipment for high-salinity wastewater according to claim 4, characterized in that: The stirring rod (332) is configured as a spirally bent "L" shaped plate, and the stirring rod (332) is closely fitted to the inner wall of the tank (11).

6. The energy-saving treatment equipment for high-salinity wastewater according to claim 3, characterized in that: A fixing rod (123) is fixedly installed inside the tank cover (12), and the stirring shaft (32) moves through the fixing rod (123).

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