Intelligent detection device for stainless steel wastewater

Abstract

The invention discloses an intelligent detection device for stainless steel wastewater, and relates to the technical field of wastewater detection. The blow-off pipe is communicated with the treatment cabin and is used for discharging the wastewater in the treatment cabin, and the wastewater in the blow-off pipe is always in a non-full pipe flow state; the first detection assembly is arranged on the blow-off pipe and is used for visually detecting wastewater in the blow-off pipe; the second detection assembly is arranged on the first detection assembly and is used for chemically detecting the wastewater in the blow-off pipe; the controller is electrically connected with the first detection assembly and the second detection assembly, and intelligent detection of wastewater can be achieved through mutual cooperation of the first detection assembly and the second detection assembly.

Description

Technical Field

[0001] This invention relates to the field of wastewater testing technology, specifically to an intelligent testing device for monitoring the water quality of stainless steel wastewater before evaporation and concentration. Background Technology

[0002] Wastewater generated in the stainless steel processing industry typically contains large amounts of heavy metal ions, suspended solids, and acidic and alkaline chemicals. Direct discharge without rigorous testing and treatment will cause serious harm to the ecological environment. Currently, in stainless steel wastewater treatment processes, equipment such as MVR evaporators are commonly used for wastewater reduction and concentration. Real-time monitoring of water quality parameters is crucial in the pretreatment stage before the wastewater enters the evaporation equipment for concentration, as it is essential for adjusting the evaporation load and preventing equipment scaling.

[0003] Various online water quality monitoring devices are widely used in existing technologies, typically including a sampling mechanism for collecting water samples and a chemical detection unit for analyzing water quality. However, existing stainless steel wastewater monitoring devices still have many shortcomings when applied to the pre-evaporation treatment stage.

[0004] First, most existing detection devices employ a fixed-cycle sampling and detection mode, which cannot be dynamically adjusted according to the actual water quality of the wastewater, significantly increasing the long-term operation and maintenance costs of the equipment. Second, to achieve the positioning and submersion of the detection probe, traditional devices often require multiple independent power components such as horizontal propulsion mechanisms and vertical lifting mechanisms, resulting in a bulky mechanical structure and complex control. Furthermore, existing chemical detection components typically analyze water samples in a static detection tank during operation. This static environment easily leads to microbubbles adhering to the sensor probe or suspended solids settling and covering the probe, hindering effective contact and causing data distortion.

[0005] Therefore, it is necessary to provide an intelligent detection device for stainless steel wastewater to solve the above problems. Summary of the Invention

[0006] To address the aforementioned problems, the present invention provides the following technical solution: an intelligent detection device for stainless steel wastewater, comprising: a treatment chamber for treating stainless steel wastewater; a discharge pipe connected to the treatment chamber for discharging the wastewater from the treatment chamber, wherein the wastewater in the discharge pipe is always in a non-full-flow state; a first detection component disposed on the discharge pipe for visually detecting the wastewater in the discharge pipe; a second detection component disposed on the first detection component for chemically detecting the wastewater in the discharge pipe; and a controller electrically connected to both the first and second detection components; the controller is configured to: receive the optical features of the wastewater extracted by the first detection component and compare them in real time with a built-in feature database to calculate an emission risk index; when the emission risk index is lower than a set threshold, adjust the sampling interval of the second detection component to a first preset period, wherein the first preset period is configured to be the maximum allowable interval that meets the requirements of the loop pipe; and when the emission risk index is higher than the set threshold, shorten the sampling interval to a second preset period.

[0007] Furthermore, the first detection component includes: a fixed chamber, which is fixedly connected to the sewage pipe; a sliding chamber, which is vertically slidably disposed in the fixed chamber, with an elastic reset member provided between the top of the sliding chamber and the fixed chamber, and a notch opened on one side of the bottom of the sliding chamber; and a detector, which is horizontally slidably disposed in the sliding chamber and is capable of moving to the notch.

[0008] Furthermore, the detector includes at least a visual sensor and a suction pump.

[0009] Furthermore, the detector also includes: a positioning base for mounting the suction pump and the vision sensor; a first baffle fixed to one side of the positioning base; a second baffle fixed to the side of the positioning base away from the first baffle; and a filter screen connected between the first baffle and the second baffle.

[0010] Furthermore, the first detection component also includes a driver, the driver comprising: a limiting cylinder comprising two mutually perpendicular straight cylindrical sections and a bent tube connecting the two straight cylindrical sections, the limiting cylinder being fixedly connected to the slide chamber, and the side of the fixed chamber having a clearance groove for providing clearance for the limiting cylinder; a rigid rod being fixedly connected to the detector, the rigid rod being slidably disposed in the limiting cylinder; a flexible rod being slidably disposed in the limiting cylinder and connected to the rigid rod; a telescopic device having a vertical telescopic end for connecting to the flexible rod; a mounting frame; and an adjusting frame, height-adjustably mounted on the mounting frame for mounting the telescopic device.

[0011] Furthermore, the elastic reset member is configured such that when the telescopic end of the telescoping device extends downward, it drives the flexible rod to slide along the limiting cylinder, thereby driving the detector to move horizontally. At this time, the elastic reset member keeps the slide chamber stationary until the detector reaches the notch and abuts against the side wall of the slide chamber. The telescopic end of the telescoping device continues to extend and overcomes the elastic force of the elastic reset member, driving the slide chamber to move downward as a whole.

[0012] Furthermore, the second detection component includes: an outer chamber fixed to the fixed chamber; and an inner chamber disposed in the outer chamber; the inner chamber is connected to the suction pump to obtain the wastewater to be tested, and the inner chamber also has an inlet and an outlet.

[0013] Furthermore, the second detection component also includes a smart sensor, the detection probe of which extends into the inner compartment.

[0014] Furthermore, the second detection component also includes: a plurality of hinge joints, respectively disposed on the inner wall of the outer compartment and the outer wall of the inner compartment; and an oscillator hinged between the hinge joints at corresponding positions.

[0015] Compared with the prior art, the present invention provides an intelligent detection device for stainless steel wastewater, which has the following beneficial effects: This invention abandons the single mode of fixed-period sampling of traditional equipment and constructs an intelligent detection method based on the collaborative work of the first detection component and the second detection component. By periodically assessing the water quality risk level through the first detection component, the device can adaptively adjust the detection strategy and automatically extend the sampling interval of the second detection component when the risk is low.

[0016] This invention utilizes a single telescopic device in conjunction with a limiting cylinder and an elastic reset component to achieve a spatial composite motion from horizontal displacement to vertical descent. The telescopic device first drives the detector to move horizontally to the observation position. After the mechanical limit lock is engaged, it then drives the entire slide to descend. This purely mechanical interlocking constraint based on physical structure constrains the timing of the action and effectively avoids the dependence of existing technologies on complex multi-axis electronic control systems and additional position sensors.

[0017] This invention uses a hinged oscillator between the outer and inner chambers to drive the inner chamber to generate controlled micro-amplitude high-frequency vibrations. The forced fluid disturbance generated by this structure can not only effectively break up interference bubbles attached to the smart sensor probe, but also promote the rapid diffusion of the analyte to the sensing interface, thereby significantly shortening the response time of a single detection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a stainless steel wastewater intelligent detection device. Figure 2This is a cross-sectional view of the first detection component. Figure 3 This is a cross-sectional view of the second detection component. Figure 4 This is a schematic diagram of the cross-sectional structure of the detector; Figure 5 This is a cross-sectional view of the driver. In the diagram: 1. Processing chamber; 2. Sewage pipe; 3. First detection component; 4. Second detection component; 5. Controller; 31. Fixed chamber; 32. Sliding chamber; 33. Elastic reset component; 34. Detector; 35. Driver; 341. Positioning seat; 342. Suction pump; 343. Vision sensor; 344. First baffle; 345. Second baffle; 346. Filter screen; 351. Mounting bracket; 352. Adjusting bracket; 353. Telescopic device; 354. Flexible rod; 355. Rigid rod; 356. Limiting cylinder; 41. Outer chamber; 42. Vibrator; 43. Hinge joint; 44. Inner chamber; 45. Smart sensor. Detailed Implementation

[0019] In the embodiments of the present invention, please refer to Figures 1-5 A smart detection device for stainless steel wastewater is provided, comprising: a treatment chamber 1 for treating stainless steel wastewater; a drain pipe 2 connected to the treatment chamber 1 for discharging the wastewater from the treatment chamber 1, wherein the wastewater in the drain pipe 2 is always in a non-full flow state; a first detection component 3 disposed on the drain pipe 2 for visual detection of the wastewater in the drain pipe 2; a second detection component 4 disposed on the first detection component 3 for chemical detection of the wastewater in the drain pipe 2; and a controller 5 electrically connected to the first detection component 3 and the second detection component 4 respectively.

[0020] The stainless steel wastewater is first treated in treatment chamber 1 and then discharged through the connected drain pipe 2. During this process, the wastewater in drain pipe 2 is specially controlled to always be in a non-full pipe flow state, that is, the wastewater does not fill the entire cross-section of the pipe, but flows in a partially filled form.

[0021] In this flow state, the first detection component 3 installed on the sewage pipe 2 uses optical principles to visually detect the wastewater and acquire visual information of the wastewater (such as color, turbidity, suspended matter state, etc.). Compared with full pipe flow, non-full pipe flow avoids the problem of unstable light refractive index or inability to see through caused by liquid filling the pipe, so that the visual sensor 343 can clearly capture the shape, foam or suspended impurities on the surface of the wastewater, thereby greatly improving the accuracy and reliability of visual detection.

[0022] The second detection component 4, installed on the first detection component 3, can selectively perform chemical detection on the wastewater to obtain information on the chemical composition of the wastewater (such as pH value, ion concentration, etc.).

[0023] The controller 5, as the core control unit, establishes electrical connections with the first detection component 3 and the second detection component 4 respectively. It is responsible for receiving and processing the data fed back by the two types of detection components, and may coordinate and control the overall operation of the device according to preset logic.

[0024] Specifically, the first detection component 3, installed on the sewage pipe 2, performs non-contact scanning of the water flow in a non-full-flow state. The first detection component 3 can extract the optical features of the wastewater, which have a significant correlation with the concentration of heavy metal ions in the wastewater. The controller 5 receives the optical features extracted by the first detection component 3 and compares them with the built-in feature database in real time, and calculates the emission risk index through an algorithm. When the emission risk index is lower than a set threshold, it is determined that the macroscopic physical properties of the wastewater are within the normal fluctuation range, and the sampling interval of the second detection component 4 is adjusted to a first preset period, which is configured as the maximum allowable interval to meet the requirements of the loop pipe. When the emission risk index is higher than the set threshold, it is determined to be a high-concentration pollution emission event, and the sampling interval is shortened to the second preset period.

[0025] The controller 5 can be any one of a programmable logic controller (PLC), a microcontroller (MCU), or an industrial computer (IPC).

[0026] In addition, visual inspection can quickly reflect the macroscopic physical properties of wastewater, while chemical inspection can accurately quantify microscopic chemical indicators. This multimodal inspection method overcomes the limitations of single inspection methods and can more comprehensively and multidimensionally assess the water quality of stainless steel wastewater.

[0027] In this embodiment, the first detection component 3 includes: a fixed chamber 31, which is fixedly connected to the sewage pipe 2; a sliding chamber 32, which is vertically slidably disposed in the fixed chamber 31, and an elastic reset member 33 is provided between the top of the sliding chamber 32 and the fixed chamber 31, and a notch is provided on one side of the bottom of the sliding chamber 32; and a detector 34, which is horizontally slidably disposed in the sliding chamber 32 and can move to the notch.

[0028] The detector 34 includes at least a visual sensor 343 and a suction pump 342.

[0029] When the sewage pipe 2 is not in a full-flow state, the detector 34 slides horizontally in the slide 32 until it moves to the opening on one side of the bottom of the slide 32. At this time, the vision sensor 343 contained in the detector 34 scans the surface of the water flow in the sewage pipe 2 through the opening in a non-contact manner. The vision sensor 343 quickly captures the optical characteristics of the wastewater and transmits the data to the controller 5 in real time.

[0030] When only the vision sensor 343 is used for detection, the slide 32 is kept in a relatively high position under the action of the top elastic reset member 33. At this time, the suction pump 342 contained in the detector 34 is in a stopped state and does not perform contact sampling.

[0031] In addition, the slide 32 can be driven to overcome the elastic force of the elastic reset member 33 and slide vertically downward along the fixed chamber 31. Since the detector 34 is located at the notch of the slide 32 at this time, the sinking of the slide 32 drives the detector 34 to move downward as a whole, so that the suction port of the suction pump 342 extends into the wastewater. Then, the suction pump 342 starts to extract the wastewater and transport it to the second detection component 4 for chemical analysis.

[0032] The visual sensor 343 can be any one of a high-sensitivity spectral sensor, an industrial camera, or a photoelectric sensor.

[0033] The elastic reset element 33 is any one of a compression helical spring, a nitrogen spring, or a hydraulic reset mechanism.

[0034] The suction pump 342 is any one of a miniature diaphragm pump, a peristaltic pump, or a piston pump.

[0035] The detector 34 further includes: a positioning base 341 for mounting the suction pump 342 and the vision sensor 343; a first baffle 344 fixed to one side of the positioning base 341; a second baffle 345 fixed to the side of the positioning base 341 away from the first baffle 344; and a filter screen 346 connected between the first baffle 344 and the second baffle 345.

[0036] In addition, the first detection component 3 also includes a driver 35, which includes: a limiting cylinder 356, comprising two straight cylindrical sections arranged perpendicularly to each other and a bent tube section connecting the two straight cylindrical sections, the limiting cylinder 356 being fixedly connected to the slide chamber 32, and the side of the fixed chamber 31 having a clearance groove for providing clearance for the limiting cylinder 356; a rigid rod 355 being fixedly connected to the detector 34, the rigid rod 355 being slidably disposed in the limiting cylinder 356; a flexible rod 354 being slidably disposed in the limiting cylinder 356 and connected to the rigid rod 355; a telescopic device 353 having a vertical telescopic end for connecting to the flexible rod 354; a mounting frame 351; and an adjusting frame 352, height-adjustably mounted on the mounting frame 351 for mounting the telescopic device 353.

[0037] When the suction pump 342 is working, the wastewater must first pass through the filter screen 346 connected between the first baffle 344 and the second baffle 345. The first baffle 344 and the second baffle 345 form a protective wall for a fluid channel. The filter screen 346 performs preliminary physical filtration on the sucked-in wastewater, intercepting large suspended solids, fibers, or impurities in the wastewater to prevent them from entering the suction pump 342 and causing blockage or damage. Furthermore, when the detector 34 is in a state of... Figure 2 In the initial state, the first baffle 344 and the second baffle 345 can also provide a certain degree of sealing protection for the vision sensor 343 and the suction pump 342.

[0038] When the telescopic end of the telescopic device 353 extends downward, the flexible rod 354 and the rigid rod 355 are driven to slide inside the limiting cylinder 356. Due to the guiding effect of the limiting cylinder 356 (at this time, the slide 32 is temporarily stationary due to the action of the elastic reset member 33), the detector 34 is driven to move horizontally relative to the slide 32, so that the sensor and the suction nozzle move to the notch of the slide 32, ready to perform the detection.

[0039] When the detector 34 moves horizontally to its limit position, the telescopic device 353 continues to extend downward. Due to the obstruction of horizontal displacement, the force is transmitted to the slide 32 through the rigid rod 355 and the limiting cylinder 356, overcoming the elastic force of the elastic reset member 33, and pushing the slide 32 together with the detector 34 to move downward, so that the suction pump 342 is immersed in the wastewater for sampling.

[0040] The telescopic device 353 can be any one of an electric push rod, a hydraulic cylinder, or a pneumatic cylinder.

[0041] Specifically, the elastic reset member 33 is configured such that when the telescopic end of the telescoping device 353 extends downward, it drives the flexible rod 354 to slide along the limiting cylinder 356, thereby driving the detector 34 to move horizontally. At this time, the elastic reset member 33 keeps the slide 32 stationary until the detector 34 reaches the notch and abuts against the side wall of the slide 32. The telescopic end of the telescoping device 353 continues to extend and overcomes the elastic force of the elastic reset member 33, driving the slide 32 to move downward as a whole.

[0042] In other words, when the detector 34 comes into contact with the side wall of the slide 32, the horizontal displacement is physically locked, and the telescopic end of the telescopic device 353 continues to extend downward. At this time, the driving force acts directly on the side wall of the slide 32. As the driving force continues to increase and exceeds the elastic force threshold of the elastic reset member 33, the elastic reset member 33 begins to be stretched. The slide 32 no longer remains stationary, but is driven to overcome the elastic force, causing the detector 34 to move downward as a whole, providing the necessary immersion depth for the suction pump 342 to start and draw water samples.

[0043] In this embodiment, the second detection component 4 includes: an outer chamber 41, fixed on the fixed chamber 31; and an inner chamber 44, disposed in the outer chamber 41. The inner chamber 44 is connected to the suction pump 342 to obtain the wastewater to be tested, and the inner chamber 44 also has an inlet and an outlet.

[0044] The second detection component 4 also includes a smart sensor 45, the detection probe of which extends into the inner compartment 44.

[0045] When the suction pump 342 is started, the wastewater to be tested is transported to the second detection component 4 through the pipeline. The wastewater enters the inner chamber 44 through the liquid inlet. The inner chamber 44 acts as an independent reaction vessel, isolating the sample to be tested from the sewage pipe 2 of the environment.

[0046] The detection probe of the intelligent sensor 45 extends directly into the liquid surface of the inner chamber 44 to perform real-time, high-precision measurement of specific chemical indicators in the sample (such as heavy metal ion concentration, pH, etc.).

[0047] The intelligent sensor 45 is any one of a pH sensor, a conductivity sensor, an ion-selective electrode, or a spectrochemical probe.

[0048] Furthermore, the second detection component 4 also includes: a plurality of hinge joints 43, respectively disposed on the inner wall of the outer compartment 41 and the outer wall of the inner compartment 44; and an oscillator 42, hinged between the hinge joints 43 at corresponding positions.

[0049] During chemical testing, the oscillator 42 is activated, generating periodic reciprocating power. This power is transmitted through the hinge joint 43 connected at both ends. The movement of the oscillator 42 drives the inner chamber 44 to swing slightly or vibrate at high frequency relative to the outer chamber 41. This mechanical motion directly acts on the wastewater to be tested contained in the inner chamber 44. This continuous oscillation keeps the wastewater in the inner chamber 44 in a dynamic mixing state, eliminating the liquid stratification phenomenon and continuously flushing the detection probe surface of the intelligent sensor 45 that extends into it.

[0050] It should be explained that in chemical analysis, if the wastewater is in a static state, the reagent and pollutant may not mix evenly, or there may be a local concentration gradient, causing the reading of the smart sensor 45 to lag behind the true value. The active stirring effect generated by the oscillator 42 can accelerate the contact rate between the analyte and the sensor sensing surface, allowing the sensor to quickly reach an equilibrium state, which greatly shortens the response time of a single detection and improves the detection efficiency of the device in high-frequency sampling mode.

[0051] The oscillator 42 is any one of a cylinder, a hydraulic cylinder, or a linear motor-driven push rod.

[0052] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A smart detection device for stainless steel wastewater, characterized in that, include: Treatment chamber (1) is used to treat stainless steel wastewater; The sewage pipe (2) is connected to the treatment chamber (1) and is used to discharge the wastewater in the treatment chamber (1). The wastewater in the sewage pipe (2) is always in a non-full pipe flow state. The first detection component (3) is installed on the sewage pipe (2) and is used for visual detection of wastewater in the sewage pipe (2); The second detection component (4) is disposed on the first detection component (3) and is used for chemical detection of wastewater in the sewage pipe (2); The controller (5) is electrically connected to the first detection component (3) and the second detection component (4), respectively; The controller (5) is configured to: receive the optical features of the wastewater extracted by the first detection component (3) and compare them with the built-in feature database in real time to calculate the emission risk index; When the emission risk index is lower than the set threshold, the sampling interval of the second detection component (4) is adjusted to the first preset period, which is configured as the maximum allowable interval that meets the requirements of the loop pipe. When the emission risk index is higher than the set threshold, the sampling interval will be shortened to the second preset period.

2. The intelligent detection device for stainless steel wastewater according to claim 1, characterized in that, The first detection component (3) includes: Fixed compartment (31) is fixedly connected to the sewage pipe (2); The slide (32) is vertically slidably disposed in the fixed compartment (31). An elastic reset member (33) is provided between the top of the slide (32) and the fixed compartment (31). A notch is provided on one side of the bottom of the slide (32). The detector (34) is horizontally slidably disposed in the slide (32) and is capable of moving to the notch.

3. The intelligent detection device for stainless steel wastewater according to claim 2, characterized in that, The detector (34) includes at least a visual sensor (343) and a suction pump (342).

4. The intelligent detection device for stainless steel wastewater according to claim 3, characterized in that, The detector (34) also includes: Positioning seat (341) for mounting the suction pump (342) and the vision sensor (343). The first baffle (344) is fixed to one side of the positioning seat (341); The second baffle (345) is fixed to the side of the positioning seat (341) away from the first baffle (344); A filter screen (346) is connected between the first baffle (344) and the second baffle (345).

5. The intelligent detection device for stainless steel wastewater according to claim 2, characterized in that, The first detection component (3) further includes a driver (35), the driver (35) comprising: The limiting cylinder (356) includes two straight cylinder sections arranged perpendicularly to each other and a bent pipe section connecting the two straight cylinder sections. The limiting cylinder (356) is fixedly connected to the slide (32). The side of the fixed chamber (31) is provided with a clearance groove for providing clearance for the limiting cylinder (356). The rigid rod (355) is fixedly connected to the detector (34), and the rigid rod (355) is slidably disposed in the limiting cylinder (356); The flexible rod (354) is slidably disposed in the limiting cylinder (356) and connected to the rigid rod (355); The telescopic member (353) has a vertical telescopic end for connection with the flexible rod (354); Mounting bracket (351); An adjustable bracket (352) is mounted on the mounting bracket (351) for mounting the telescopic device (353).

6. The intelligent detection device for stainless steel wastewater according to claim 5, characterized in that, The elastic reset member (33) is configured as follows: When the telescopic end of the telescopic device (353) extends downward, it drives the flexible rod (354) to slide along the limiting cylinder (356), thereby driving the detector (34) to move horizontally. At this time, the elastic reset member (33) keeps the slide (32) stationary until the detector (34) reaches the notch and abuts against the side wall of the slide (32). The telescopic end of the telescopic device (353) continues to extend and overcomes the elastic force of the elastic reset member (33), driving the slide (32) to move downward as a whole.

7. The intelligent detection device for stainless steel wastewater according to claim 3, characterized in that, The second detection component (4) includes: The outer compartment (41) is fixed to the fixed compartment (31); The inner compartment (44) is located within the outer compartment (41); The inner chamber (44) is connected to the suction pump (342) to obtain the wastewater to be tested, and the inner chamber (44) also has an inlet and a outlet.

8. The intelligent detection device for stainless steel wastewater according to claim 7, characterized in that, The second detection component (4) also includes a smart sensor (45), the detection probe of which extends into the inner compartment (44).

9. The intelligent detection device for stainless steel wastewater according to claim 7, characterized in that, The second detection component (4) also includes: Multiple hinge joints (43) are respectively disposed on the inner wall of the outer compartment (41) and the outer wall of the inner compartment (44); The oscillator (42) is hinged between the corresponding hinge joints (43).

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