Circulating overflow treatment system for infiltration wastewater

Abstract

The utility model relates to the technical field of wastewater circulation treatment, and discloses an infiltration wastewater circulation overflow treatment system, which comprises a cleaning tank group, a to-be-treated wastewater tank, reduced pressure distillation equipment, a concentrated wastewater tank and a regenerated water tank, the bottom ends of the cleaning tanks are communicated with liquid collecting boxes through drainage pipes, each liquid collecting box is provided with a diaphragm pump, the water inlet end of each diaphragm pump is communicated with the corresponding liquid collecting box, and the water outlet end of each diaphragm pump is communicated with the upper end of the next cleaning tank through a water conveying pipe; the water outlet end of the diaphragm pump at the tail end is communicated with a to-be-treated wastewater tank through a water conveying pipe, the to-be-treated wastewater tank is communicated with reduced pressure distillation equipment through a pipeline, and one path of the reduced pressure distillation equipment is communicated with a concentrated wastewater tank through a pipeline. Through stepped control of water quality in each cleaning tank, cleaning quality can be guaranteed, and emission of infiltration cleaning wastewater is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater recycling treatment technology, and in particular to an overflow treatment system for infiltration wastewater recycling. Background Technology

[0002] Impregnation is a microporous permeation sealing process used to introduce a sealing medium into micropores through methods such as natural permeation, vacuuming, and pressurization, thereby sealing the gaps. After impregnation, the workpiece needs to be cleaned to remove impurities and residual impregnating liquid from its surface. The impregnation cleaning waste liquid contains impregnating agent and other impurities, requiring recycling treatment; currently, vacuum distillation is commonly used.

[0003] In existing technologies, when using clean water for cleaning, only one cleaning tank is usually set up. In order to ensure the cleaning quality of the immersed workpiece, the cleaning water is replaced after one or several cleanings. This not only increases the water consumption, but also increases the discharge and treatment volume of the immersed cleaning wastewater. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an infiltration wastewater circulation overflow treatment system, which can ensure the cleaning quality and reduce the discharge of infiltration cleaning wastewater by controlling the water quality in each cleaning tank in stages.

[0005] This utility model is achieved using the following technical solution: an infiltration wastewater circulation overflow treatment system, comprising a cleaning tank group, a wastewater tank to be treated, a vacuum distillation device, a concentrated wastewater tank, and a regenerated water tank. The cleaning tank group includes multiple cleaning tanks, each with a collection tank for collecting drainage. The bottom of each cleaning tank is connected to the collection tank via a drain pipe. Each collection tank is equipped with a diaphragm pump, the inlet of which is connected to the collection tank, and the outlet of which is connected to the top of the next cleaning tank via a water supply pipe. The outlet of the last diaphragm pump is connected to the wastewater tank to be treated via a water supply pipe. The wastewater tank to be treated is connected to a vacuum distillation unit via a pipeline. One pipeline of the vacuum distillation unit is connected to a concentrated wastewater tank, and the other pipeline is connected to the inlet of a regenerated water tank. The outlet of the regenerated water tank is connected to a cleaning tank located at the beginning of the process via a pipeline. Wastewater is sent to the cleaning tank at the beginning of the process by a diaphragm pump. The final discharged cleaning wastewater is pumped to the wastewater tank to be treated by a diaphragm pump at the end of the process. The wastewater is then treated by the vacuum distillation unit. The treated distilled water is sent back to the cleaning tank at the beginning of the process as regenerated water for continued use in production. The concentrated liquid after distillation is discharged into the concentrated wastewater tank for collection.

[0006] Furthermore, the cleaning tank assembly includes three cleaning tanks: a third cleaning tank, a second cleaning tank, and a first cleaning tank, wherein the third cleaning tank is located at the beginning and the first cleaning tank is located at the end.

[0007] Furthermore, each of the aforementioned drain pipes is equipped with a drain valve.

[0008] Furthermore, each collection tank is equipped with a liquid level detection sensor.

[0009] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model provides a wastewater recycling overflow treatment system for infiltration. By setting up multiple sets of cleaning tanks, the content of the infiltration solvent in each tank decreases sequentially. In operation, diaphragm pumps are used to sequentially send wastewater to the upstream cleaning tanks. The final discharged cleaning wastewater is pumped to the wastewater tank to be treated. The wastewater is treated using a vacuum distillation device. The concentrated liquid after distillation is discharged into the concentrated wastewater tank for collection. The treated distilled water is transported back as reclaimed water to the third cleaning tank located at the beginning for continued use in production. This system can achieve stepped control of water quality in each cleaning tank, ensuring cleaning quality, and can also reduce the total amount of wastewater discharged from infiltration cleaning. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the pipeline connection of the infiltration wastewater circulation overflow treatment system of this utility model.

[0011] In the diagram: Third cleaning tank-1; Second cleaning tank-2; First cleaning tank-3; Wastewater tank to be treated-4; Vacuum distillation equipment-5; Concentrated wastewater tank-6; Regenerated water tank-7; Drain valve-21; Collection tank-22; Liquid level sensor-23; Diaphragm pump-24; Drain pipe-25; Water delivery pipe-26. Detailed Implementation

[0012] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0013] The purpose of this invention is to address the shortcomings of existing technologies by providing a system for treating the overflow of infiltration wastewater.

[0014] Example 1

[0015] This embodiment provides a system for treating the recirculating overflow of infiltration wastewater, referring to... Figure 1As shown, the system includes a cleaning tank assembly, a wastewater tank 4, a vacuum distillation unit 5, a concentrated wastewater tank 6, and a regenerated water tank 7. The cleaning tank assembly comprises multiple cleaning tanks, each with a collection tank 22 for collecting drainage. Each collection tank 22 is equipped with a level sensor 23 to detect the solution level within it. The bottom of each cleaning tank is connected to the collection tank 22 via a drain pipe 25, and each drain pipe 25 is equipped with a drain valve 21 to control the opening and closing of the corresponding cleaning tank's outlet. Each collection tank 22 is equipped with a diaphragm pump 24. In this embodiment, the diaphragm pump 24 is a pneumatic diaphragm pump from the prior art. The inlet of the diaphragm pump 24 is connected to the collection tank 22, and the outlet of the diaphragm pump 24 is connected to the upper end of the next cleaning tank via a water supply pipe 26. The cleaning tank assembly in this embodiment includes three cleaning tanks: a third cleaning tank 1, a second cleaning tank 2, and a first cleaning tank 3, wherein the third cleaning tank 1 is located at the beginning and the first cleaning tank 3 is located at the end. Of course, the cleaning tank assembly can also be equipped with two, four, or five cleaning tanks.

[0016] The outlet of a diaphragm pump 24 located at the end is connected to the wastewater tank 4 to be treated via a water supply pipe. The wastewater tank 4 is connected to the vacuum distillation equipment 5 via a pipe. One end of the vacuum distillation equipment 5 is connected to the concentrated wastewater tank 6 via a pipe, and the other end is connected to the inlet of the regenerated water tank 7 via a pipe. The outlet of the regenerated water tank 7 is connected to the cleaning tank located at the beginning via a pipe. In this embodiment, the vacuum distillation equipment 5 can be the industrial wastewater vacuum distillation purification equipment of our company, Jinlun (Tianjin) Precision Machinery Co., Ltd., or the low-temperature distillation equipment in the prior art, for continuous and uninterrupted automatic treatment of wastewater raw liquid to generate regenerated purified water and concentrated waste liquid.

[0017] This utility model discloses a wastewater circulation overflow treatment system for impregnated materials, comprising three cleaning tanks arranged sequentially from front to back: a third cleaning tank 1, a second cleaning tank 2, and a first cleaning tank 3. When cleaning the impregnated workpiece, it is first cleaned in the first cleaning tank 3. At this initial cleaning stage, the impregnating solvent content in the solution of the first cleaning tank 3 is the highest. After the initial cleaning, the impregnated workpiece is sequentially cleaned in the second cleaning tank 2 and the third cleaning tank 1, with the impregnating solvent content decreasing sequentially in the third cleaning tank 1, the second cleaning tank 2, and the first cleaning tank 3.

[0018] During operation, wastewater is sequentially sent to the preceding cleaning tank by the diaphragm pump 24 associated with each cleaning tank. The final discharged cleaning wastewater is pumped by the diaphragm pump 24 to the wastewater tank 4 to be treated. The wastewater is treated by the vacuum distillation equipment 5. The concentrated liquid after distillation is discharged into the concentrated wastewater tank 6 for collection. The treated distilled water is transported back to the third cleaning tank 1 at the beginning as reclaimed water for continued production. This system can achieve step-by-step control of water quality in each cleaning tank, ensuring cleaning quality, and also reduce the total amount of wastewater discharged from the immersion cleaning process.

[0019] 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. A system for treating the overflow of infiltration wastewater, characterized in that: The system includes a cleaning tank group, a wastewater tank to be treated (4), a vacuum distillation equipment (5), a concentrated wastewater tank (6), and a regenerated water tank (7). The cleaning tank group includes multiple cleaning tanks. Each cleaning tank is equipped with a collection tank (22) for collecting the drainage from the cleaning tank. The bottom of the cleaning tank is connected to the collection tank (22) through a drain pipe (25). Each collection tank (22) is equipped with a diaphragm pump (24). The inlet of the diaphragm pump (24) is connected to the collection tank (22), and the outlet of the diaphragm pump (24) is connected to the top of the next cleaning tank through a water supply pipe (26). The outlet of a diaphragm pump (24) located at the end is connected to the wastewater tank (4) to be treated through a water supply pipe. The wastewater tank (4) to be treated is connected to a vacuum distillation device (5) through a pipe. One of the vacuum distillation devices (5) is connected to a concentrated wastewater tank (6) through a pipe, and the other is connected to the inlet of a regenerated water tank (7) through a pipe. The outlet of the regenerated water tank (7) is connected to a cleaning tank located at the beginning through a pipe. Wastewater is sent to the upstream cleaning tank by a diaphragm pump (24). The final discharged cleaning wastewater is pumped to the wastewater tank (4) by the diaphragm pump (24) at the end. The wastewater is treated by a vacuum distillation device (5). The treated distilled water is sent back to the upstream cleaning tank as reclaimed water for continued production. The distilled concentrate is discharged into the concentrated wastewater tank (6) for collection.

2. The infiltration wastewater circulation overflow treatment system according to claim 1, characterized in that: The cleaning tank group includes three cleaning tanks, namely the third cleaning tank (1), the second cleaning tank (2) and the first cleaning tank (3), wherein the third cleaning tank (1) is located at the beginning and the first cleaning tank (3) is located at the end.

3. The infiltration wastewater circulation overflow treatment system according to claim 1 or 2, characterized in that: Each of the drain pipes (25) is equipped with a drain valve (21).

4. The infiltration wastewater circulation overflow treatment system according to claim 3, characterized in that: Each collection tank (22) is equipped with a liquid level detection sensor (23).

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