Wastewater treatment equipment and wastewater treatment method using equipment

A technology for wastewater treatment and equipment, which is used in water treatment parameter control, heating water/sewage treatment, and multi-stage water/sewage treatment. The effect of size, low production cost and easy operation

Pending Publication Date: 2019-04-12
SHENZHEN AIXCENT AUTOIMMUNIZATION EQUIP CO LTD
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In addition, the used cleaning agent and cleaned water are returned to the cleaning equipment for us...
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Abstract

The invention relates to wastewater treatment equipment and a wastewater treatment method using the equipment. The wastewater treatment equipment comprises a machine frame, a wastewater recovery device, a separation device, a concentrate recovery device, a reclaimed water recovery device, a distillation device and a condensing device which are arranged on the machine frame; the separation device is connected with the wastewater recovery device, the concentrate recovery device and the reclaimed water recovery device, so that wastewater in the wastewater recovery device is separated, a small-molecule liquid obtained after separation is introduced into the reclaimed water recovery device for recycling, and a concentrate obtained after the separation is discharged to the concentrate recovery device; the distillation device is connected with the concentrate recovery device and the condensing device, so that the concentrate in the concentrate recovery device is distilled, and steam obtainedby distillation is introduced into the condensing device; and the condensing device is connected with the reclaimed water recovery device, so that condensed water is introduced into the reclaimed water recovery device for recycling. The wastewater treatment equipment provided by the invention can reduce an amount of a waste liquid to the utmost extent, and has the advantages of saving energy and protecting the environment.

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  • Wastewater treatment equipment and wastewater treatment method using equipment
  • Wastewater treatment equipment and wastewater treatment method using equipment
  • Wastewater treatment equipment and wastewater treatment method using equipment

Examples

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Example Embodiment

[0045] In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0046] Figure 1 to Figure 2 A preferred embodiment of the wastewater treatment plant of the present invention is shown.
[0047] The waste water treatment equipment can be used to treat the waste water after cleaning by the cleaning machine. It can separate the unused emulsified oil, and return the reusable cleaning liquid and water to the cleaning equipment for reuse, minimizing the amount of waste liquid. , which has the advantages of simple operation, low production cost, energy saving and environmental protection, and small size, which can be matched with washing machines.
[0048] like figure 1 and figure 2As shown, the wastewater treatment equipment includes a rack 11, a wastewater recovery device 12, a separation device 13, a concentrate recovery device 14, a reclaimed water recovery device 15, a distillation device 16, a condensation device 17 and a water separator 18; the wastewater recovery device 12. The separation device 13, the concentrate recovery device 14, the regenerated water recovery device 15, the distillation device 16, the condensation device 17 and the water separator 18 are all arranged on the rack 11. The separation device 13 is connected to the waste water recovery device 12, the concentrate recovery device 14 and the regenerated water recovery device 15. The separation device 13 can be used to separate and process the waste water of the waste water recovery device 12, and pass the small molecule liquid obtained after separation through into the regenerated water recovery device 15, so as to realize the recycling of the small molecular liquid, and the small molecular liquid can be input into the washing machine again to clean the items in the washing machine. The separation device 13 can also discharge the concentrated solution obtained after separation into the concentrated solution recovery device for further processing. In this embodiment, the small molecular liquid is water and/or a cleaning agent; the concentrated liquid may be an oil substance or other macromolecular substances such as cleaning dirt. The distillation device 16, which can be connected with the concentrated solution recovery device 14 and the condensation device 17, can be used to distill the concentrated solution recovered by the concentrated solution recovery device 14, and pass the steam obtained by distillation into the condensation device 17 in order to condense the steam into water for easy recycling. The condensing device 17 can be connected to the reclaimed water recovery device 15, which can be used to pass the condensed water into the regenerated water recovery device 15 for recycling again. The water separator is arranged between the condensing device and the regeneration water recovery device, and can be used to separate the water in the liquid output from the condensing device. It will be appreciated that in other embodiments, the water trap may be omitted.
[0049] The waste liquid cleaning equipment realizes the treatment of waste water after cleaning by the washing machine through separation, distillation, condensation and water separation. No waste liquid is discharged during the whole process, which minimizes the amount of waste liquid and realizes full recycling. Thereby, the waste liquid is prevented from being discharged to pollute the environment, and the utility model has the advantages of energy saving, environmental protection, and simple operation.
[0050] Further, the rack 11 includes a bottom plate 111 and a bracket 112; the bottom plate 111 can be a steel plate, an iron plate or other metal plates, and a number of supporting feet can be provided at the bottom to support the bottom plate 111; the waste water recovery device 12, the concentration The liquid recovery device 14 and the regenerated water recovery device 15 are sequentially installed on the bottom plate 111 . The bracket 112 is disposed on one side of the bottom plate 111 and is perpendicular to the bottom plate 111 . The bottom of the bracket 111 is provided with a plurality of supporting feet to support the bracket 111 . The support 111 may comprise a multi-layered frame structure. In this embodiment, preferably, the bracket 111 includes a two-layer frame structure, and the bracket 111 can be made of stainless steel, iron or other metals. The distillation device 16, the water separator 18, and the condensation device 17 are sequentially arranged on the support 112. Specifically, the distillation device 16, the water separator 18, and the condensation device 17 are sequentially arranged on the upper frame structure; the separation device It is arranged on the bracket 112 and located above the bottom plate 111 , specifically, it is arranged between the upper frame structure and the lower frame structure, and is located outside the lower frame structure. The overall layout of the wastewater treatment equipment is compact, the space is effectively utilized, the length of the pipeline can be saved, and resources and space are saved, so that the size of the entire wastewater treatment equipment is reduced, and it is convenient to be used in conjunction with the cleaning equipment.
[0051] The waste water recovery device 12 is connected to the washing machine by setting a first pipeline 191. The first pipeline 191 is provided with a first water pump 1911, so that the waste water after cleaning in the washing tank of the washing machine can be pumped into the waste water recovery device. Device 12, in this embodiment, the first water pump 1911 can be a stainless steel diaphragm pump. The first pipeline 191 can be made of stainless steel. Of course, it can be understood that in other embodiments, the first water pump 1911 and the first pipeline 191 are not limited to stainless steel.
[0052] The waste water recovery device 12 includes a waste water tank 121, a first liquid level detection device 122 and a first float valve 123; the waste water tank 121 is disposed on the bottom plate 112 and can be used to collect waste water. The first liquid level detection device 122 is disposed in the waste water tank 121 and can be used to detect whether the waste water in the waste water tank 121 reaches a first preset liquid level, and is connected to the first water pump 1911. When the liquid level in the waste water tank 121 reaches the first preset liquid level, the first water pump 1911 stops pumping the waste water into the waste water tank 121, thereby preventing the waste water in the waste water tank 121 from overflowing, thereby reducing waste and waste of waste water. Environmental pollution. The first float valve 123 is disposed on the first pipeline 191, which can automatically control the liquid level of the waste water tank 121 to prevent the waste water in the waste water tank 121 from overflowing, thereby reducing waste of waste water. In this embodiment, the first liquid level detection device 122 may be a liquid level sensor, and the first preset liquid level may be the highest liquid level that can be reached in the waste water tank 121. Of course, it can be understood that the first preset liquid level The liquid level is not limited to the highest liquid level, and can be set by the user.
[0053] The separation device 13 includes a primary separation component 131 and a secondary separation component 132; the primary separation component 131 and the secondary separation component 132 are connected to the wastewater recovery device 12, and are arranged in sequence. The primary separation component 131 can perform rough filtration on the wastewater, the secondary separation component 132 can perform ultrafiltration on the wastewater, and the effective components in the wastewater can be fully separated through the secondary separation component 131, so that the wastewater can be reused . Of course, it can be understood that, in other embodiments, the separation device 13 is not limited to a two-stage separation device, and may include a multi-stage separation device.
[0054] In this embodiment, the primary separation component 131 may be a filter cotton core or a filter screen; preferably, the primary separation component 131 is a filter cotton core, which is disposed at the outlet of the waste water tank 121 and can be used for filtering Dirt and sediment in wastewater. Of course, it can be understood that in other embodiments, the first-stage separation assembly 131 is not limited to filter cotton cores and filter meshes.
[0055] In this embodiment, the secondary separation component 132 communicates with the primary separation component 131 through a pipeline, and may be an inorganic ceramic membrane filter. By ultrafiltration of the cleaning liquid with an inorganic ceramic membrane filter, macromolecular substances and small molecular liquids can be separated, and the wastewater can be separated into a concentrated liquid and a mixed liquid of water and cleaning agent, and discharged to the concentrated liquid separately. in the recovery unit and the reclaimed water recovery unit. The inorganic ceramic membrane filter has the advantages of high stability, high mechanical strength, and good wear resistance and erosion resistance, and can be used to increase the service life of the entire equipment. It can be understood that in other embodiments, the secondary separation component 132 is not limited to an inorganic ceramic membrane filter. After the inorganic ceramic membrane has been used for a period of time, it can be backwashed so as to improve the filtration effect. During the backwashing process, the regenerated water recovered by the regenerated water recovery device 15 can be used, and the rinsed sewage can be passed into the concentrated solution recovery device 14 to be processed again.
[0056] The waste water recovery device 12 and the separation device 13 are connected by setting a second pipeline 192 . Specifically, the second pipeline 192 is disposed between the primary separation component 131 and the waste water recovery device 12 and between the secondary separation component 132 and the primary separation component 131, which in turn turn the waste water recovery device 12, a The stage separation assembly 131 and the secondary separation assembly 132 communicate with each other. The second pipeline 192 is provided with a second water pump 1921, and the second water pump 1921 is disposed between the primary separation component 131 and the secondary separation component. In this embodiment, the second water pump 1921 can be a stainless steel multi-stage pump (1.5KW), which can pressurize the waste water recovery device 12 and pump the water from the waste water tank 121 into the waste water recovery device 12 . The second pipeline 192 can be made of stainless steel. Of course, it can be understood that in other embodiments, the second water pump 1921 is not limited to a stainless steel multi-stage pump (1.5KW), and the second pipeline 192 has The material is not limited to stainless steel.
[0057] The concentrated solution recovery device 14 includes a concentration tank 141, a liquid level detection device and a float valve 142 arranged in the concentration tank; the waste water tank 121 and the concentration tank 141 are arranged in sequence, and are connected with the separation device 13 and the distillation device 16 is connected to receive the concentrated liquid separated by the separation device 13, and input the concentrated liquid into the distillation device 16 for distillation. The liquid level detection device is disposed in the concentration tank 141 and can be used to detect the liquid level in the concentration tank 141 , and specifically, the liquid level detection device can be a liquid level sensor. The float valve 142 is arranged between the concentration tank 141 and the distillation device 16 , which can prevent the concentration tank 141 from overflowing.
[0058] The regeneration water recovery device 15 includes a regeneration water tank 151 , a second liquid level detection device and a second float valve 152 ; the regeneration water tank 151 communicates with the separation device 13 to receive the small molecule liquid separated by the separation device 13 . The concentration tank 141 and the regeneration water tank 151 are arranged in sequence. The regenerated water tank 151 is in communication with the washing machine, and can input the water stored therein into the washing tank of the washing machine for reuse. The second liquid level detection device is disposed in the regenerated water tank 151 and can be used to detect the liquid level of the regenerated water tank 151 . In this embodiment, specifically, the second liquid level detection device may be a liquid level sensor. Of course, it can be understood that in other embodiments, the second liquid level detection device is not limited to a liquid level sensor. The second float valve 152 is disposed on the pipeline between the regenerated water tank 151 and the secondary separation assembly 132 , which can be used to prevent the regenerated water tank 151 from overflowing, thereby reducing the discharge of the regenerated water tank 151, thereby achieving maximum limited recycling.
[0059] The reclaimed water recovery device 15 and the washing machine are connected by a third pipeline 193; the third pipeline 193 is provided with a third water pump 1931; the third water pump 1931 is a stainless steel water pump (0.37KW), which can The cleaning liquid in the reclaimed water recovery device 15 is pumped into the cleaning machine for reuse. The third pipeline 193 can be made of stainless steel. Of course, it can be understood that in other embodiments, the third water pump 1931 is not limited to a stainless steel water pump (0.37KW), and the material of the third pipeline 193 is not limited to Limited to stainless steel. The third water pump 1931 is connected to the second liquid level detection device. When the second liquid level detection device detects that the liquid level in the regenerated water tank 151 reaches the second preset liquid level, it starts to work, and the regenerated water tank 151 The liquid in the washing machine is pumped into the washing machine for recycling, so as to avoid the waste of washing liquid, and it is seamlessly connected with the washing machine to achieve zero discharge. The second preset liquid level can be the highest liquid level that the regenerated water tank 151 can reach. Of course, it is not limited to the highest liquid level, which can be set by the user according to actual needs.
[0060] The distillation device 16 includes a distillation tank 161, a heating device 162, and a vacuum device 163; the distillation tank 161 is disposed on the support 11, specifically, on the upper frame structure 12, which is opposite to the waste water pipe 121 It is arranged in communication with the concentrated solution recovery device 14, and the concentrated solution recovery device 14 can input the concentrated solution into the distillation tank 161, and the steam outlet of the distillation tank 161 is connected with the condensation device 17, so that the steam generated by distillation can be into the condensing device 14 . The heating device 162 is arranged in the distillation tank 161, which can heat the concentrated liquid in the distillation tank 161 to generate steam. In this embodiment, the heating device 162 may be a heating rod. Of course, it can be understood that in other embodiments, the heating device 162 is not limited to a heating rod.
[0061]A fourth pipeline 194 is arranged between the concentrate recovery device 14 and the distillation device 16 , the vacuuming device 163 is arranged on the fourth pipeline 194 , and the vacuuming device 163 includes a vacuum tank, a third liquid level detection device and the third float valve; the vacuum tank is arranged in communication with the distillation tank 161, the vacuum tank is arranged between the distillation tank 161 and the concentrated solution recovery device 14, and the vacuum tank can be used for the input of the distillation tank 161. The concentrated liquid is evacuated, and the third liquid level detection device is arranged in the vacuum tank, which can be used to detect the liquid level in the vacuum tank, and can be a liquid level sensor. The third float valve is arranged on the fourth pipeline 194, which can prevent the vacuum tank from overflowing. The fourth pipeline 194 is provided with a fourth water pump 1941 , and the fourth water pump 1941 can pump the concentrated solution into the vacuuming device 163 . In this embodiment, the fourth water pump 1941 can be a stainless steel water pump (0.37KW); the fourth pipeline 194 can be made of stainless steel. Of course, it can be understood that in other embodiments, the fourth water pump 1941 is not limited to stainless steel water pump (0.37KW), and the material of the fourth pipeline 194 is not limited to stainless steel. The fourth water pump 1941 is connected to the third liquid level detection device. When the third liquid level detection device detects that the liquid level in the vacuum tank reaches the third preset liquid level, the third water pump 1941 stops working, and then Stop pumping the concentrated liquid into the vacuuming device 163 to avoid overflow of the vacuum tank of the vacuuming device 163, thereby avoiding the discharge of the concentrated liquid, realizing zero discharge, and further realizing the maximum utilization of the concentrated liquid. In this embodiment, the third preset liquid level may be the highest liquid level in the vacuum tank. Of course, it can be understood that in other embodiments, the third preset liquid level is not limited to the highest liquid level.
[0062] The distillation device 16 further includes a fourth liquid level detection device, which is arranged in the distillation tank 161 and can be used to detect the liquid level in the distillation tank 161 . In this embodiment, the fourth liquid level detection device may be a liquid level sensor. The fourth liquid level detection device is connected to the heating device 162 and the vacuuming device 163. When the fourth liquid level detection device detects that the concentrated liquid in the distillation tank 161 is lower than the fourth preset liquid level, the heating The device 162 and the vacuuming device 163 are stopped to avoid dry burning, thereby improving the safety performance of the distillation device 16 . In this embodiment, the fourth preset liquid level is the lower liquid level of the distillation tank 161 .
[0063] In this embodiment, the waste water treatment equipment may further include a residue tank, which is connected to the distillation device and may be used for receiving residues remaining in the distillation tank 161 after distillation. The residue in the residue tank can be sent to a third party for processing, thereby achieving energy saving and environmental protection.
[0064] The condensing device 17 is communicated with the distillation tank 161 , which can condense the steam output from the distillation tank 161 . The condensing device 17 can be connected to a refrigeration system to connect a refrigerant to exchange heat with the steam in the condensing device 17, thereby realizing condensation. In this embodiment, the condensing device 17 includes a condensing tank and a heat exchange tube, the condensing tank is connected to the steam outlet of the distillation tank 161, and the condensing tank can be used to collect steam. The heat exchange tube is arranged in the condensing tank, which is connected with the refrigeration system and can be connected to a refrigerant. The steam can pass into the gap between the condensation tank and the heat exchange tube to exchange heat with the refrigerant in the heat exchange tube. The refrigeration system can be a refrigeration unit, and the refrigeration unit can be a 3-horsepower cooling unit, which can output coolant to cool the steam in the condensing tank. The condensation tank and the refrigeration system are provided with an expansion valve, and an expansion valve may also be arranged between the condensation tank and the water separator 18 to control the amount of refrigerant.
[0065] The water separator 18 is arranged between the condensation tank and the regeneration water tank 151 , and communicates with the condensation tank and the regeneration water tank 151 through a pipeline. The liquid output by the condensing device 17 contains water and cleaning agent, and the condensing device 17 can separate out the water to achieve further purification. A fifth water pump 195 and a jet device are arranged between the water separator 18 and the condensing device 17. The fifth water pump 195 can pump the gas output from the condensing device into the water separator. The fifth water pump 195 is a circulating Vortex water pump (1.5KW), which can carry out circulating liquid pumping and cooperate with jet device 196 to generate vacuum negative pressure, and its vacuum negative pressure value can be 0.06PA, so that the water vapor in the distillation tank is pumped to the condensation tank and then to the water separator , to achieve step-by-step condensation.
[0066] In this embodiment, the waste water treatment equipment may also be provided with a control device, which is connected to each water pump and the liquid level detection device. The control device includes a controller and a touch screen device connected to the controller. The controller It can be Japan's Panasonic PLC; the touch screen device can be used to set parameters and modify parameters.
[0067] image 3 A preferred embodiment of the wastewater treatment method of the present invention is shown.
[0068] The wastewater treatment method can be applied to the wastewater treatment equipment of the present invention, which can process the wastewater generated by the washing machine, separate the unused emulsified oil, and return the reusable washing liquid and water to the washing equipment for re-use. It has the advantages of simple operation, energy saving and environmental protection.
[0069] like image 3 As shown, the wastewater treatment method includes the following steps:
[0070] S1, passing the waste water into the waste water recovery device 12 until the first preset liquid level is reached.
[0071] Specifically, the cleaning machine is communicated with the waste water recovery device through the first pipeline 191, the first water pump 1911 is turned on, and the waste water in the cleaning tank of the cleaning machine is pumped into the waste water tank 121 of the waste water recovery device 12. When the first liquid level detection device 123 detects that the waste water in the waste water tank 121 reaches the first preset liquid level, the first water pump 1911 is turned off;
[0072] S2. Pass the waste water in the waste water recovery device 12 into the separation device, pass the small molecule liquid separated by the separation device 18 into the regenerated water recovery device 15 and intercept the separated concentrated liquid to the concentrated liquid recovery device 14.
[0073] Further, the S2 step includes the following steps: S2.1, passing the wastewater in the wastewater recovery device into the primary separation component of the separation device for primary separation. Specifically, the second pipeline 192 is set to communicate with the waste water recovery device 12 and the separation device 13, the second water pump 1921 is turned on, the waste water in the waste water tank 121 is pressurized, and passed into the filter cotton core for coarsening. Filtration to filter out dirt and sediment in wastewater. S2.2. Pass the wastewater separated by the primary separation component into the secondary separation component of the separation device for secondary separation. Specifically, the waste water after rough filtration through the filter cotton core is passed into the inorganic ceramic membrane filter for ultrafiltration, the waste water is separated into concentrated liquid and small molecular liquid, and the small molecular liquid is passed into the regenerated water of the regenerated water recovery device 15 In the tank 151 , the concentrate is retained in the concentrate tank of the concentrate recovery device 14 .
[0074] The step S2 also includes the following steps: when the second liquid level detection device detects that the liquid level in the regenerated water tank 151 reaches the second preset liquid level, the third water pump is turned on, and the water in the regenerated water tank 151 is pumped into In this washing machine, recycling is performed.
[0075] S3. Pass the concentrated liquid in the concentrated liquid recovery device 14 into the distillation device 16, and pass the steam generated by the distillation device 16 into the condensing device 17 for condensation.
[0076] Specifically, the concentrated solution recovery device 14 is communicated with the distillation device 16 by setting the fourth pipeline 194, and the vacuum pumping device 163 is arranged on the fourth pipeline 194. First, the fourth water pump 1941 is turned on to remove the concentrated solution. The concentrated liquid in the concentration tank 141 of the recovery device 14 is pumped into the vacuum tank of the vacuum pumping device 163, and vacuuming is performed until the third liquid level detection device detects that the liquid level in the vacuum tank reaches the third preset liquid level Turn off the third water pump 1941, stop pumping the concentrated liquid to the vacuum tank; secondly, pass it into the distillation tank 161; then, open the refrigeration system first, and set the temperature of the condensing device 17 to reach the set value 0 ℃ below, then turn on the heating device 162, the heating device 162 distills the concentrated liquid in the distillation tank 161, and the steam generated by the distillation passes into the condensation device 17, and the condensation device 17 condenses it into liquid. In this step, when the fourth liquid level detection device detects that the concentrated liquid in the distillation tank 161 is lower than the fourth preset liquid level, the heating device 162 and the evacuation hole device 163 are stopped from working. In this step, the residue remaining after the distillation of the distillation device 16 is discharged into the residue tank so as to be sent to a third party for processing.
[0077] S4. Output the condensed liquid to the reclaimed water recovery device 15 for recycling.
[0078] Specifically, a water separator is set between the condensing device 17 and the regenerated water recovery device 15, and an ejector is set between the water separator 18 and the condensing device 17. First, the fifth water pump is turned on, and the condensing device 17 is output. The liquid is pumped into the water separator 18, the water in the liquid is separated, and passed to the regenerated water recovery device 15 for recycling, and the cleaning agent in the liquid is recycled to the storage tank to realize recycling.
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