A silane wastewater treatment device

Abstract

The utility model relates to wastewater treatment technical field, the utility model provides a kind of silane wastewater treatment device, a kind of silane wastewater treatment device includes: bottom plate, the top of the bottom plate is fixedly connected with adjusting pool, the top of the adjusting pool is fixedly connected with monitoring equipment, the top of the bottom plate is fixedly connected with dosing reaction pool, the top of the dosing reaction pool is fixedly connected with stirrer, the top of the bottom plate is provided with evaporation crystallization device.The utility model provides a kind of silane wastewater treatment device, realizes that evaporation crystallization device recovers system waste heat preheats material liquid by three-stage preheating system, reduces the heating energy consumption of MVR forced circulation evaporator, two-effect evaporator, one-effect evaporator, two-effect evaporator uses the secondary steam of one-effect evaporator as heat source, replaces part of live steam, solves the technical problem that processing device reduces live steam consumption, reduces energy waste in prior art.

Description

Technical Field

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

[0002] In the semiconductor manufacturing, photovoltaic, surface treatment, and chemical synthesis industries, acidic silane wastewater containing high concentrations of silica, calcium ions, and chloride ions is generated during the production process. Research and development are needed to address the needs of reducing, rendering harmless, and recycling this type of special industrial wastewater.

[0003] Existing technologies for silane wastewater contain high levels of silicon and salt, and traditional processes suffer from three major problems: large amounts of reagents are used in the coagulation and sedimentation stage, resulting in high sludge production and unstable silicon removal efficiency; high energy consumption is achieved in the evaporation stage, making it difficult to achieve zero discharge; and resource recovery is not considered, with wastewater only meeting discharge standards after treatment without utilizing resources such as calcium chloride and sodium chloride. Therefore, we propose a silane wastewater treatment device. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this utility model provide a silane wastewater treatment device, which solves the technical problem of reducing live steam consumption and energy waste in existing treatment devices.

[0005] According to one aspect, at least one embodiment of the present invention provides a silane wastewater treatment device, comprising: a base plate, an equalization tank fixedly connected to the top of the base plate, a monitoring device fixedly connected to the top of the equalization tank, a dosing reaction tank fixedly connected to the top of the base plate, a mixer fixedly connected to the top of the dosing reaction tank, and an evaporation crystallization device provided on the top of the base plate. The evaporation crystallization device includes a three-stage preheating system. The bottom of the three-stage preheating system is fixedly connected to the top of the base plate. A connecting pipe 1 passes through the side of the three-stage preheating system. A connecting plate is fixedly connected to the top of the base plate. An MVR forced circulation evaporator is fixedly connected to the top of the connecting plate. The end of the connecting pipe 1 away from the three-stage preheating system is fixedly connected to the MVR forced circulation evaporator. A connecting pipe 2 passes through the top of the MVR forced circulation evaporator. A second-effect evaporator is fixedly connected to the top of the base plate. The end of the connecting pipe 2 away from the MVR forced circulation evaporator is connected to the second-effect evaporator.

[0006] For example, in at least one embodiment of the silane wastewater treatment device provided by this utility model, a connecting pipe three is further included: a connecting pipe three penetrates the side of the second-effect evaporator, a first-effect evaporator is fixedly connected to the top of the base plate, and the connecting pipe three is connected to the first-effect evaporator. The second-effect evaporator is connected to the first-effect evaporator through the connecting pipe three, forming a key link in the double-effect evaporation process. Subsequently, the secondary steam generated by the first-effect evaporator can be used to power the second-effect evaporator, reducing live steam consumption and lowering operating costs.

[0007] A negative pressure salt collection tank is fixedly connected to the top of the base plate. The side of the negative pressure salt collection tank is connected to the first-effect evaporator via a pipeline. A connecting pipe four runs through the side of the negative pressure salt collection tank. A micro-water washing salt tank is fixedly connected to the top of the base plate, and the connecting pipe four is connected to the micro-water washing salt tank. The negative pressure salt collection tank, connected to the first-effect evaporator via a pipeline, can efficiently collect the impurities precipitated by the first-effect evaporator, preventing the accumulation of impurities from affecting the evaporator efficiency. The connecting pipe four transports the impurities to the micro-water washing salt tank, which washes the impurities, removing attached impurities and creating conditions for subsequent centrifugation to separate high-quality sodium chloride salt, thereby enhancing the resource recovery value.

[0008] A connecting pipe (V) runs through the side of the negative pressure salt collection tank, and a centrifuge is fixedly connected to the top of the base plate. The connecting pipe (V) is connected to the centrifuge. The negative pressure salt collection tank transports the pretreated mixed salt to the centrifuge through the connecting pipe (V). The centrifuge can achieve efficient separation of mixed salt and residual liquid through centrifugal action, reducing the moisture and impurity content in the mixed salt and further purifying it.

[0009] A calcium chloride solution outlet pipe and a sodium chloride salt outlet pipe are connected to the side of the centrifuge. A connecting pipe is also connected to the side of the three-stage preheating system. A filter product water tank is fixedly connected to the top of the base plate. The side of the three-stage preheating system is connected to the filter product water tank via a pipe. A product water reuse pipe is connected to the side of the filter product water tank. The centrifuge outputs calcium chloride solution through the calcium chloride solution outlet pipe and sodium chloride salt through the sodium chloride salt outlet pipe, achieving graded recovery of wastewater resources. The calcium chloride solution can be used in refrigerants, antifreeze, and other fields, while the sodium chloride salt can be further utilized. The three-stage preheating system, connected to the filter product water tank, can utilize the system's waste heat to preheat the liquid in the filter product water tank, reducing the energy consumption of the evaporation crystallization device. The filter product water tank achieves partial product water reuse through the product water reuse pipe, reducing fresh water consumption and conserving water resources.

[0010] According to another aspect, at least one embodiment of the present invention also provides a silane wastewater treatment device, comprising: a flow control device provided on the side of the filter product water tank, the flow control device including a sealing adjustment box, the sealing adjustment box being fixedly connected to the side of the filter product water tank, a limit rod being fixedly connected to the inner side wall of the sealing adjustment box, a sealing block being slidably connected to the circumferential surface of the limit rod, a connecting sleeve being fixedly connected to the side of the sealing block, an electric telescopic machine being fixedly connected to the side of the sealing adjustment box, the telescopic end of the electric telescopic machine being fixedly connected to the side of the sealing block, and a sealing ring being provided on the circumferential surface of the telescopic end of the electric telescopic machine.

[0011] For example, in at least one embodiment of the silane wastewater treatment device provided by this utility model, it further includes: a connecting water pipe penetrating the side of the dosing reaction tank; a high-efficiency sedimentation tank fixedly connected to the top of the bottom plate; the side of the high-efficiency sedimentation tank communicating with the dosing reaction tank via the connecting water pipe; and a second connecting water pipe penetrating the side of the dosing reaction tank. The dosing reaction tank transports the reacted wastewater to the high-efficiency sedimentation tank via the connecting water pipe. The high-efficiency sedimentation tank can quickly settle suspended solids, impurities, and other sediments in the wastewater, reducing the filtration load of the subsequent multi-media filter and extending the service life of the multi-media filter. The second connecting water pipe provides a channel for communication between the dosing reaction tank and the intermediate water tank, ensuring smooth wastewater flow and preventing water stagnation.

[0012] An intermediate water tank is fixedly connected to the top of the base plate, and the side of the intermediate water tank is connected to the chemical dosing reaction tank via a second connecting water pipe. The intermediate water tank receives the effluent from the chemical dosing reaction tank through the second connecting water pipe, which can buffer the water volume and balance the water quality, preventing fluctuations in the water quality and quantity of the effluent from the high-efficiency sedimentation tank from directly affecting the filtration effect of the multi-media filter, and ensuring the stable operation of the subsequent treatment units.

[0013] A multi-media filter is fixedly connected to the top of the base plate. A connecting pipe runs through the top of the multi-media filter, connecting it to an intermediate water tank. The intermediate water tank transports balanced wastewater to the multi-media filter via the connecting pipe. The multi-media filter filters out fine impurities and residual suspended solids in the wastewater, further improving water quality and ensuring that the water entering the filter's product water tank meets the water quality requirements for reuse or evaporation crystallization. This prevents impurities from affecting the operating efficiency of subsequent equipment or causing scaling.

[0014] A connecting pipe runs through the bottom of the multi-media filter, passing through a sealed regulating box and connecting to the filter's product water tank. A sludge treatment device is fixedly connected to the top of the base plate, and this device is connected to a high-efficiency sedimentation tank via a connecting pipe. The multi-media filter delivers filtered water to the filter's product water tank through the connecting pipe and the sealed regulating box. The sealed regulating box, in conjunction with a flow control device, precisely controls the influent flow rate, ensuring a stable influent flow to the filter's product water tank. The sludge treatment device, connected to the high-efficiency sedimentation tank, can perform pressure filtration treatment on the sludge produced in the high-efficiency sedimentation tank, reducing the sludge's moisture content, volume, and disposal costs.

[0015] The beneficial effects of this utility model are as follows: In this invention, the evaporation crystallization device recovers the waste heat of the system through a three-stage preheating system to preheat the feed liquid, reducing the heating energy consumption of the MVR forced circulation evaporator, the second-effect evaporator, and the first-effect evaporator. The second-effect evaporator uses the secondary steam from the first-effect evaporator as a heat source to replace part of the live steam, reducing the amount of live steam consumed. The MVR forced circulation evaporator then reuses the heat energy by compressing the secondary steam, further reducing energy waste. The overall energy consumption is significantly lower than that of traditional single-effect evaporation equipment.

[0016] In this invention, the flow control device drives the sealing block to slide along the limit rod via an electric telescopic mechanism, which enables continuous adjustment of the liquid flow rate. This allows for precise matching of the processing capacity of the subsequent evaporation and crystallization device, preventing the evaporator from overloading due to excessive flow or running dry due to insufficient flow. It also adapts to the water recycling needs of the filter's water production tank, preventing operational instability issues caused by flow fluctuations in each unit. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0018] Figure 1 This is a structural schematic diagram of the overall appearance of this utility model; Figure 2 for Figure 1 A schematic diagram of the processing device in the embodiment; Figure 3 This is a schematic diagram of the intermediate water tank and multi-media filter of this utility model; Figure 4 for Figure 3 A schematic diagram of the evaporation crystallization apparatus in the embodiment; Figure 5 This is a schematic diagram of the bottom structure of the evaporation and crystallization apparatus of this utility model; Figure 6 This is a schematic diagram of the flow control device of this utility model; In the diagram: 1. Base plate; 2. Equalization tank; 3. Monitoring equipment; 4. Chemical dosing reaction tank; 5. Mixer; 6. Connecting water pipe; 7. High-efficiency sedimentation tank; 8. Flow control device; 9. Evaporation and crystallization device; 10. Intermediate water tank; 11. Connecting pipe one; 12. Multi-media filter; 13. Filter product water tank; 14. Sludge treatment device; 15. Connecting water pipe two; 16. Product water reuse pipeline; 81. Sealed equalization box; 82. Limiting rod; 83. Sealing block; 8 4. Electric telescopic machine; 86. Connecting sleeve; 91. Three-stage preheating system; 92. Connecting pipe one; 93. Connecting plate; 94. MVR forced circulation evaporator; 95. Connecting pipe two; 96. Double-effect evaporator; 97. Connecting pipe three; 98. Single-effect evaporator; 99. Negative pressure salt collection tank; 910. Connecting pipe four; 912. Micro-water washing salt tank; 913. Connecting pipe five; 914. Centrifuge; 915. Calcium chloride solution outlet pipe; 916. Sodium chloride salt outlet pipe. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0019] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-6 As shown, it illustrates a silane wastewater treatment device according to an embodiment of the present invention, comprising: a base plate 1, an equalization tank 2 fixedly connected to the top of the base plate 1, a monitoring device 3 fixedly connected to the top of the equalization tank 2, a dosing reaction tank 4 fixedly connected to the top of the base plate 1, a mixer 5 fixedly connected to the top of the dosing reaction tank 4, and an evaporation crystallization device 9 provided on the top of the base plate 1. The evaporation crystallization device 9 includes a three-stage preheating system 91. The bottom of the three-stage preheating system 91 is fixedly connected to the top of the base plate 1. A connecting pipe 92 passes through the side of the three-stage preheating system 91. A connecting plate 93 is fixedly connected to the top of the base plate 1. An MVR forced circulation evaporator 94 is fixedly connected to the top of the connecting plate 93. The end of the connecting pipe 92 away from the three-stage preheating system 91 is fixedly connected to the MVR forced circulation evaporator 94. A connecting pipe 95 passes through the top of the MVR forced circulation evaporator 94. A second-effect evaporator 96 is fixedly connected to the top of the base plate 1. The end of the connecting pipe 95 away from the MVR forced circulation evaporator 94 is connected to the second-effect evaporator 96.

[0025] A connecting pipe 3 97 runs through the side of the double-effect evaporator 96, and a first-effect evaporator 98 is fixedly connected to the top of the base plate 1. The connecting pipe 3 97 is connected to the first-effect evaporator 98. The double-effect evaporator 96 is connected to the first-effect evaporator 98 through the connecting pipe 3 97, forming a key link in the double-effect evaporation process. Subsequently, the secondary steam generated by the first-effect evaporator 98 can be used to power the double-effect evaporator 96, reducing live steam consumption and lowering operating costs.

[0026] A negative pressure salt collection tank 99 is fixedly connected to the top of the base plate 1. The side of the negative pressure salt collection tank 99 is connected to the first-effect evaporator 98 via a pipeline. A connecting pipe 910 runs through the side of the negative pressure salt collection tank 99. A micro-water washing salt tank 912 is fixedly connected to the top of the base plate 1. The connecting pipe 910 is connected to the micro-water washing salt tank 912. The negative pressure salt collection tank 99, connected to the first-effect evaporator 98 via a pipeline, can efficiently collect the impurities precipitated by the first-effect evaporator 98, preventing the accumulation of impurities from affecting the evaporator efficiency. The connecting pipe 910 transports the impurities to the micro-water washing salt tank 912, which washes the impurities and removes the attached impurities, creating conditions for the subsequent separation of high-quality sodium chloride salt by the centrifuge 914, thereby improving the resource recovery value.

[0027] A connecting pipe 913 runs through the side of the negative pressure salt collection tank 99, and a centrifuge 914 is fixedly connected to the top of the bottom plate 1. The connecting pipe 913 is connected to the centrifuge 914. The negative pressure salt collection tank 99 transports the pretreated mixed salt to the centrifuge 914 through the connecting pipe 913. The centrifuge 914 can achieve efficient separation of mixed salt and residual liquid through centrifugal action, reduce the moisture and impurity content in the mixed salt, and further purify the mixed salt.

[0028] A calcium chloride solution outlet pipe 915 and a sodium chloride salt outlet pipe 916 are connected to the side of centrifuge 914. A connecting pipe is connected to the side of the three-stage preheating system 91. A filter product water tank 13 is fixedly connected to the top of the base plate 1. The side of the three-stage preheating system 91 is connected to the filter product water tank 13 through a pipe. A product water reuse pipe 16 is connected to the side of the filter product water tank 13. Centrifuge 914 outputs calcium chloride solution through the calcium chloride solution outlet pipe 915 and sodium chloride salt through the sodium chloride salt outlet pipe 916, realizing the graded recovery of wastewater resources. The calcium chloride solution can be used in refrigerants, antifreeze, and other fields, and the sodium chloride salt can be further utilized. The three-stage preheating system 91 is connected to the filter product water tank 13, which can utilize the system's waste heat to preheat the liquid in the filter product water tank 13, reducing the energy consumption of the evaporation crystallization device 9. The filter product water tank 13 realizes partial product water reuse through the product water reuse pipe 16, reducing the consumption of fresh water and saving water resources.

[0029] This embodiment provides a silane wastewater treatment device. The waste heat of the system is recovered through a three-stage preheating system 91 to preheat the feed liquid, thereby reducing the heating energy consumption of the MVR forced circulation evaporator 94, the second-effect evaporator 96, and the first-effect evaporator 98. The second-effect evaporator 96 uses the secondary steam of the first-effect evaporator 98 as a heat source to replace part of the live steam, thereby reducing the amount of live steam consumed.

[0030] In some examples, the operation of the evaporation crystallization device 9 begins with the feed liquid from the filter product water tank 13 being transported to the three-stage preheating system 91. The feed liquid from the filter product water tank 13 first enters the three-stage preheating system 91, passing sequentially through a non-condensable steam preheater, a condensate preheater, and a steam preheater. The heat from the live steam condensate and secondary steam condensate within the system is used to raise the temperature of the feed liquid. After preheating, it is transported to the MVR forced circulation evaporator 94 via connecting pipe 1 92. The MVR forced circulation evaporator 94 is fixed to the base plate 1 via connecting plate 93 to ensure stable operation. Inside the MVR forced circulation evaporator 94, the preheated feed liquid is heated and evaporated by compressing secondary steam with a compressor to increase its thermal energy, achieving preliminary concentration. The forced circulation design allows the feed liquid to flow at high speed within the evaporator, preventing localized overheating and scaling. The concentrated feed liquid is then transported to the second-effect evaporator 96 via connecting pipe 2 95 at the top. The second-effect evaporator 96 uses the secondary steam generated by the first-effect evaporator 98 as a heat source to further heat the feed liquid. The liquid is reheated and evaporated for further concentration. The concentrated liquid is then transported to the first-effect evaporator 98 via connecting pipe 3 97. The first-effect evaporator 98 uses live steam as a heat source for final heating and evaporation of the liquid until the concentration reaches the set target. Subsequently, it is discharged to a storage tank through the calcium chloride solution outlet pipe 915 for use in refrigerant, antifreeze, and other fields. The impurities precipitated in the first-effect evaporator 98 are transported to the negative pressure salt collection tank 99 for temporary storage via pipeline. The impurities in the negative pressure salt collection tank 99 are then connected to... Pipe 4 910 conveys the salt to the micro-water washing tank 912 for washing and crystal growth to remove impurities. The washed salt is then conveyed to the centrifuge 914 through connecting pipe 5 913. After centrifugal separation, high-quality sodium chloride salt that is not prone to caking is obtained. Finally, it is discharged from the sodium chloride salt outlet pipe 916 for easy packaging and transportation. The condensate from the live steam of the first-effect evaporator 98 and the condensate from the secondary steam of the second-effect evaporator 96 are both returned to the tertiary preheating system 91. After releasing heat, the condensate is discharged for reuse, completing the recycling of the heat source.

[0031] refer to Figures 1-6In some embodiments, a silane wastewater treatment device further includes a flow control device 8 disposed on the side of a filter product tank 13. The flow control device 8 includes a sealing regulating box 81, which is fixedly connected to the side of the filter product tank 13. A limit rod 82 is fixedly connected to the inner wall of the sealing regulating box 81. A sealing block 83 is slidably connected to the circumferential surface of the limit rod 82. A connecting sleeve 86 is fixedly connected to the side of the sealing block 83. An electric telescopic mechanism 84 is fixedly connected to the side of the sealing regulating box 81. The telescopic end of the electric telescopic mechanism 84 is fixedly connected to the side of the sealing block 83. A sealing ring is provided on the circumferential surface of the telescopic end of the electric telescopic mechanism 84. The device also includes a connecting water pipe 6 penetrating the side of a chemical dosing reaction tank 4. A high-efficiency sedimentation tank 7 is fixedly connected to the top of the bottom plate 1. The side of the high-efficiency sedimentation tank 7 is connected to the chemical dosing reaction tank 4 via the connecting water pipe 6. A connecting water pipe 15 penetrates the side of the chemical dosing reaction tank 4. The chemical dosing reaction tank 4 transports the reacted wastewater to the high-efficiency sedimentation tank 7 via the connecting water pipe 6. The high-efficiency sedimentation tank 7 can quickly settle suspended solids, impurities and other sediments in the wastewater, reducing the filtration load of the subsequent multi-media filter 12 and extending the service life of the multi-media filter 12. The connecting water pipe 15 provides a channel for the connection between the chemical dosing reaction tank 4 and the intermediate water tank 10, ensuring that the wastewater is transported smoothly according to the process and avoiding water stagnation.

[0032] An intermediate water tank 10 is fixedly connected to the top of the base plate 1. The side of the intermediate water tank 10 is connected to the chemical dosing reaction tank 4 via a connecting water pipe 2 15. The intermediate water tank 10 receives the effluent from the chemical dosing reaction tank 4 through the connecting water pipe 2 15, which can buffer the water volume and balance the water quality, preventing fluctuations in the water quality and volume of the effluent from the high-efficiency sedimentation tank 7 from directly affecting the filtration effect of the multi-media filter 12, and ensuring the stable operation of the subsequent treatment units.

[0033] A multi-media filter 12 is fixedly connected to the top of the base plate 1. A connecting pipe 11 runs through the top of the multi-media filter 12, connecting the top of the multi-media filter 12 to the intermediate water tank 10. The intermediate water tank 10 transports the balanced wastewater to the multi-media filter 12 through the connecting pipe 11. The multi-media filter 12 can filter out fine impurities and residual suspended solids in the wastewater, further improving water quality and ensuring that the water entering the filter's product water tank 13 meets the water quality requirements for reuse or evaporation crystallization, avoiding impurities from affecting the operating efficiency of subsequent equipment or causing scaling.

[0034] A connecting pipe runs through the bottom of the multi-media filter 12, passing through a sealed regulating box 81 and connecting to the filter product water tank 13. A sludge treatment device 14 is fixedly connected to the top of the base plate 1, and the sludge treatment device 14 is connected to the high-efficiency sedimentation tank 7 via a connecting pipe. The multi-media filter 12 delivers filtered water to the filter product water tank 13 through the connecting pipe and the sealed regulating box 81. The sealed regulating box 81 can work with the flow control device 8 to precisely control the influent flow rate, ensuring stable influent to the filter product water tank 13. The sludge treatment device 14 is connected to the high-efficiency sedimentation tank 7, and can perform pressure filtration treatment on the sludge produced in the high-efficiency sedimentation tank 7, reducing the sludge moisture content, reducing the sludge volume, and reducing sludge disposal costs.

[0035] In this embodiment, the sealing block 83 is driven to slide along the limiting rod 82 by the electric telescopic mechanism 84, which can realize the continuous adjustment of the liquid flow rate. This helps to improve the processing capacity of the subsequent evaporation and crystallization device 9 and avoids the problem of the evaporator being overloaded due to excessive flow or the evaporator running dry due to insufficient flow.

[0036] In this embodiment, the operation of the flow control device 8 begins when the liquid from the multi-media filter 12 enters the sealed regulating box 81 through the connecting pipe. The liquid filtered by the multi-media filter 12 flows into the sealed regulating box 81 through the bottom-through connecting pipe. The sealed regulating box 81 is fixed to the side of the filter product water tank 13 to ensure a fixed liquid delivery path. At this time, the sealing block 83 is in its initial position. The sealing regulating box 81 has a reserved basic flow channel, and the liquid initially flows to the filter product water tank 13. When it is necessary to adjust the liquid to match the processing load of the evaporation crystallization device 9, or to adapt to the reuse requirements of the filter product water tank 13, the electric telescopic motor 84 is started, and its telescopic end pushes the sealing block 83 along the limit rod 82. The circumferential surface slides. If the flow rate needs to be increased, the electric telescopic conveyor 84 retracts, driving the sealing block 83 to move away from the flow channel, thus expanding the flow area inside the sealing regulating box 81. If the flow rate needs to be reduced, the electric telescopic conveyor 84 extends, pushing the sealing block 83 towards the flow channel, thus reducing the flow area and achieving precise flow control. The connecting sleeve 86 fixed on the side of the sealing block 83 can enhance the connection strength between the sealing block 83 and the telescopic end of the electric telescopic conveyor 84, avoiding loosening of the connection due to long-term sliding. At the same time, the sealing ring at the telescopic end of the electric telescopic conveyor 84 is tightly attached to the inner wall of the sealing regulating box 81 to prevent the liquid from leaking from the gap between the telescopic end and the box body, ensuring that the liquid is transported in a sealed environment throughout the entire process.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A silane wastewater treatment device, characterized in that, include: The bottom plate (1) is fixedly connected to the top of the bottom plate (1), the top of the regulating tank (2) is fixedly connected to the top of the regulating tank (2), the top of the monitoring device (3) is fixedly connected to the top of the bottom plate (1), the top of the dosing reaction tank (4) is fixedly connected to the top of the dosing reaction tank (4), the top of the dosing reaction tank (4) is fixedly connected to the top of the bottom plate (1), and the top of the bottom plate (1) is provided with an evaporation crystallization device (9). The evaporation crystallization device (9) includes a three-stage preheating system (91). The bottom of the three-stage preheating system (91) is fixedly connected to the top of the base plate (1). A connecting pipe (92) runs through the side of the three-stage preheating system (91). A connecting plate (93) is fixedly connected to the top of the base plate (1). An MVR forced circulation evaporator (94) is fixedly connected to the top of the connecting plate (93). The end of the connecting pipe (92) away from the three-stage preheating system (91) is fixedly connected to the MVR forced circulation evaporator (94). A connecting pipe (95) runs through the top of the MVR forced circulation evaporator (94). A double-effect evaporator (96) is fixedly connected to the top of the base plate (1). The end of the connecting pipe (95) away from the MVR forced circulation evaporator (94) is connected to the double-effect evaporator (96).

2. The silane wastewater treatment device according to claim 1, characterized in that, The side of the second-effect evaporator (96) is connected by a connecting pipe three (97), and the top of the base plate (1) is fixedly connected to a first-effect evaporator (98). The connecting pipe three (97) is connected to the first-effect evaporator (98).

3. The silane wastewater treatment device according to claim 2, characterized in that, A negative pressure salt collection tank (99) is fixedly connected to the top of the base plate (1). The side of the negative pressure salt collection tank (99) is connected to the first-effect evaporator (98) through a pipeline. A connecting pipe (910) runs through the side of the negative pressure salt collection tank (99). A micro water washing salt tank (912) is fixedly connected to the top of the base plate (1). The connecting pipe (910) is connected to the micro water washing salt tank (912).

4. The silane wastewater treatment device according to claim 3, characterized in that, The negative pressure salt collection tank (99) has a connecting pipe five (913) running through its side, and a centrifuge (914) is fixedly connected to the top of the bottom plate (1). The connecting pipe five (913) is connected to the centrifuge (914).

5. The silane wastewater treatment device according to claim 4, characterized in that, The centrifuge (914) has a calcium chloride solution outlet pipe (915) through its side, and a sodium chloride salt outlet pipe (916) through its side. The three-stage preheating system (91) has a connecting pipe through its side. The top of the base plate (1) is fixedly connected to a filter water production tank (13). The side of the three-stage preheating system (91) is connected to the filter water production tank (13) through a pipe. The side of the filter water production tank (13) has a water recycling pipe (16) through its side.

6. The silane wastewater treatment device according to claim 5, characterized in that, A flow control device (8) is provided on the side of the filter water production tank (13). The flow control device (8) includes a sealing adjustment box (81). The sealing adjustment box (81) is fixedly connected to the side of the filter water production tank (13). A limit rod (82) is fixedly connected to the inner wall of the sealing adjustment box (81). A sealing block (83) is slidably connected to the circumferential surface of the limit rod (82). A connecting sleeve (86) is fixedly connected to the side of the sealing block (83). An electric telescopic machine (84) is fixedly connected to the side of the sealing adjustment box (81). The telescopic end of the electric telescopic machine (84) is fixedly connected to the side of the sealing block (83). A sealing ring is provided on the circumferential surface of the telescopic end of the electric telescopic machine (84).

7. The silane wastewater treatment device according to claim 6, characterized in that, A connecting water pipe (6) runs through the side of the dosing reaction tank (4), and a high-efficiency sedimentation tank (7) is fixedly connected to the top of the bottom plate (1). The side of the high-efficiency sedimentation tank (7) is connected to the dosing reaction tank (4) through the connecting water pipe (6), and a connecting water pipe (15) runs through the side of the dosing reaction tank (4).

8. The silane wastewater treatment device according to claim 7, characterized in that, The top of the base plate (1) is fixedly connected to an intermediate water tank (10), and the side of the intermediate water tank (10) is connected to the dosing reaction tank (4) through a connecting water pipe (15).

9. A silane wastewater treatment device according to claim 8, characterized in that, A multi-media filter (12) is fixedly connected to the top of the base plate (1). A connecting pipe (11) runs through the top of the multi-media filter (12). The top of the multi-media filter (12) is connected to the intermediate water tank (10) through the connecting pipe (11).

10. A silane wastewater treatment device according to claim 9, characterized in that, The bottom of the multi-media filter (12) is connected by a connecting pipe, which passes through the sealed regulating box (81) and is connected to the filter water production tank (13). The top of the base plate (1) is fixedly connected to a sludge treatment device (14), which is connected to the high-efficiency sedimentation tank (7) through a connecting pipe.

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