Equipment and method for detecting sulfide in industrial wastewater

Abstract

The invention relates to detection equipment for sulfides in industrial wastewater, and relates to the technical field of industrial wastewater, the detection equipment comprises an industrial wastewater pool, a detection box is arranged below the industrial wastewater pool through a support, a sampling mechanism is arranged between the detection box and the industrial wastewater pool, and a cleaning mechanism is arranged in the detection box and below the sampling mechanism. A quantifying mechanism is arranged between the sampling mechanism and the cleaning mechanism, and a bottling mechanism is further arranged in the detection box; according to the invention, the following problems can be solved: through the cooperation of the sampling pipe and the semicircular stirring plate, wastewater in the industrial wastewater pool is stirred, so that the extracted water sample accords with the real situation in the industrial wastewater pool; through the cooperation of a baffle plate and a four-way pipe, the waste water is prevented from directly entering the four-way pipe when the semicircular stirring plate does not rotate; through movement of the hollow plate, distilled water rushes to the inner wall of the water sample tank, so that the water sample tank is cleaned, and pollution of water sample residues to the next water sample is prevented.

Description

Technical Field

[0001] This invention relates to the field of industrial wastewater technology, and in particular to a device and method for detecting sulfides in industrial wastewater. Background Technology

[0002] Sulfide is one of the important parameters indicating water quality. Due to the varying degrees of water pollution, it is difficult to accurately measure. In routine testing, sulfide reagent is usually added to water samples and distilled water, shaken, and then left to stand for a period of time. The distilled water test tube and the water sample test tube are then placed into the testing instrument for comparison to obtain the sulfide content in the water sample. However, all of the above processes require manual operation, which is not convenient for rapid testing.

[0003] However, conventional equipment and methods for detecting sulfides in industrial wastewater often encounter problems in daily use. With technological advancements, engineers in related fields have significantly optimized these methods. For more accurate comparisons, Chinese Patent CN220380856U discloses a portable sulfide detection device for wastewater, including a sulfide detection base with a stirring chamber at its upper end and a detection mechanism located inside the base below the stirring chamber. This prior art utilizes stirring mechanisms at both the upper and lower ends of the stirring chamber's inner wall, with a transmission seat at the intersection of the two stirring mechanisms. This transmission seat enables the two stirring mechanisms to rotate in a convective motion, thus agitating and pulverizing the substances inside the wastewater, improving the stirring quality. A cleaning roller brush is located on one side of the stirring fan. While the two stirring mechanisms are agitating the wastewater inside the device, the stirring fan drives the cleaning roller brush to clean the inner wall of the device, preventing residual impurities from adhering to the inside and hindering cleaning by personnel.

[0004] However, the aforementioned portable wastewater sulfide detection equipment still has some shortcomings in practical use: 1. The portable wastewater sulfide detection device described above uses a transmission base to enable two stirring mechanisms to form a convective rotational motion, thereby stirring and crushing the substances inside the wastewater and improving the stirring quality of the stirring mechanism. However, crushing the substances in the wastewater may cause changes in the sulfide content in the wastewater, resulting in inaccurate detection.

[0005] 2. The aforementioned portable wastewater sulfide detection equipment has a cleaning roller brush on one side of the stirring fan. When the two stirring mechanisms stir the wastewater inside the device, the stirring fan drives the cleaning roller brush to clean the inner wall of the device, preventing residual impurities in the wastewater from adsorbing onto the inside of the device. However, the cleaning roller brush can only clean the solid impurities inside the device, and the water sample will still remain on the inner wall of the device, affecting the next test.

[0006] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing equipment and methods for detecting sulfides in industrial wastewater. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a device for detecting sulfides in industrial wastewater, comprising an industrial wastewater pool, a detection box mounted on a support frame below the industrial wastewater pool, a sampling mechanism positioned between the detection box and the industrial wastewater pool, a cleaning mechanism positioned inside the detection box and below the sampling mechanism, a quantitative mechanism positioned between the sampling mechanism and the cleaning mechanism, and a bottling mechanism positioned inside the detection box.

[0008] The sampling mechanism includes a water sample box located on the top of the inner wall of the detection box. A circular plate is located on the top of the detection box and above the water sample box. A sampling tube that penetrates the industrial wastewater pool is rotatably installed inside the circular plate. A four-way pipe is installed on the top of the sampling tube. Strip plates are symmetrically arranged on both sides of the outer wall of the four-way pipe. A semi-circular stirring plate is installed on the side of the strip plate away from the four-way pipe.

[0009] Preferably, the sampling mechanism further includes a dual-axis motor located at the bottom of the water sample tank and inside the detection chamber via a motor housing. A reciprocating lead screw penetrating the water sample tank is provided at the top of the output shaft of the dual-axis motor. A hollow plate that slides inside the water sample tank is fitted onto the reciprocating lead screw. A baffle is slidably provided on the inner wall of the top of the four-way pipe. A connecting rod is provided between the baffle and the hollow plate and inside the sampling tube. Circulation units are provided on both sides of the water sample tank.

[0010] Preferably, the circulation unit includes a U-shaped tube disposed on one side of the outer wall of the water sample tank, and a circulation pipe connected to the bottom of the industrial wastewater pool is disposed on one side of the outer wall of the water sample tank and below the U-shaped tube.

[0011] Preferably, the cleaning mechanism includes a water storage tank located on the top of the inner wall of the testing chamber away from the water sample tank, a circular channel is provided on the top of the hollow plate, and a telescopic pipe with one end connected to the circular channel is provided inside the water storage tank.

[0012] Preferably, the cleaning mechanism further includes a partition frame disposed on the outer wall of the hollow plate and abutting against the inner wall of the water sample tank. The outer wall of the hollow plate has multiple cleaning channels, and the inner wall of the hollow plate is hinged with an inclined plate corresponding to the cleaning channels by a torsion spring.

[0013] Preferably, the quantitative mechanism includes square water outlet pipes symmetrically arranged on the outer walls of the water sample tank and the water storage tank, and a square plate is slidably arranged on the top of the inner wall of the square water outlet pipe.

[0014] Preferably, the quantitative mechanism further includes a blocking plate disposed on the side of the square water outlet pipe away from the square plate, a roller is rotatably disposed on the top of the inner wall of the square water outlet pipe, a steel cable is disposed on the square plate and connected to the blocking plate via the roller, the blocking plates are connected to each other by a U-shaped plate, and a pressure rod is hinged to the top of the hollow plate and abuts against the inner wall of the water sample tank.

[0015] Preferably, the bottling mechanism includes a pair of arc-shaped rods symmetrically arranged on the inner wall of the detection chamber and located below the square water outlet pipe. Multiple colorimetric tubes are slidably arranged between the arc-shaped rods. Rotating rings are rotatably arranged on the outer walls of both the water sample tank and the water storage tank. Multiple push plates that abut against the colorimetric tubes are evenly arranged along the circumference of the rotating rings. Sliding cylinders are provided on the outer walls of both the water sample tank and the water storage tank and located below the arc-shaped rods.

[0016] Preferably, the bottling mechanism further includes a drive shaft rotatably mounted on the outer wall of the dual-axis motor housing, a pair of rotating wheels symmetrically mounted on the drive shaft located below the slide, a rotating shaft uniformly rotating along the circumference of the rotating wheels, and an arc-shaped spring plate mounted at the end of the rotating shaft away from the rotating wheels.

[0017] Furthermore, the present invention also provides a method for detecting sulfides in industrial wastewater, comprising the following steps: S1. Wastewater sampling: The wastewater in the industrial wastewater tank is rotated by a semi-circular stirring plate, and then the wastewater is sucked into the water sample tank by the hollow plate moving downward.

[0018] S2. Quantitative bottling: By pushing the square plate to move the blocking plate, a quantitative amount of water sample and distilled water is poured into the colorimetric tube.

[0019] S3. Device cleaning: After sampling is completed, the hollow plate moves upward. During the upward movement, distilled water is drawn into the water sample tank through the telescopic tube to clean the water sample tank.

[0020] In summary, this application includes at least one of the following beneficial technical effects: I. This invention uses a sampling tube and a semi-circular stirring plate to agitate the wastewater in the industrial wastewater tank, ensuring that the extracted water sample matches the actual conditions inside the industrial wastewater tank. Furthermore, the combination of a baffle and a four-way pipe prevents wastewater from directly entering the four-way pipe before the semi-circular stirring plate rotates.

[0021] Second, the present invention reduces the pressure below the hollow plate and below the water sample tank by moving the hollow plate, causing the distilled water in the water storage tank to rush towards the inner wall of the water sample tank, thereby cleaning the water sample tank and preventing water sample residue in the device from contaminating the next water sample.

[0022] Third, this invention, through the cooperation of a square plate and a blocking plate, can automatically and quantitatively dispense water samples and distilled water from the square outlet pipe. Furthermore, through the cooperation of a push plate and a colorimetric tube, it can bottle the water samples and distilled water, thereby achieving automatic and quantitative dispensing of water samples and distilled water into the colorimetric tube, preventing manual intervention, and thus increasing the quality and efficiency of sulfide detection. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the sampling mechanism of the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of the loop unit of the present invention.

[0027] Figure 4 This is a schematic diagram of the cleaning mechanism of the present invention.

[0028] Figure 5 This is a schematic diagram of the quantitative mechanism of the present invention.

[0029] Figure 6 This is the present invention. Figure 5 A magnified view of part A.

[0030] Figure 7 This is a schematic diagram of the bottling mechanism of the present invention.

[0031] Figure 8 This is the present invention. Figure 7 A magnified view of section B.

[0032] Figure 9 This is a schematic diagram of the processing mechanism of the present invention.

[0033] Figure 10 This is the present invention. Figure 9 A magnified view of a portion of point C.

[0034] Figure 11 This is a schematic diagram of the structure of the conveyor belt, unloading plate, take-up port, and sealing plate of the present invention.

[0035] In the diagram: 1. Industrial wastewater pool; 10. Detection box; 2. Sampling mechanism; 3. Cleaning mechanism; 4. Quantitative mechanism; 5. Bottling mechanism; 20. Water sample box; 21. Circular plate; 22. Sampling tube; 23. Four-way pipe; 24. Strip plate; 240. Semi-circular stirring plate; 25. Water inlet pipe; 26. Filter plate; 27. Dual-shaft motor; 270. Reciprocating screw; 28. Hollow plate; 280. Baffle; 281. Connecting rod; 29. ​​Circulation unit; 290. U-shaped pipe; 291. Circulation pipe; 30. Water storage tank; 31. Circular channel; 32. Telescopic pipe; 33. Separator frame; 34. Cleaning channel; 35. Inclined plate; 40. Square water outlet pipe; 41. Square plate; 42. Slide groove; 43. Spring 1; 44. Blocking plate; 45. Roller; 46. 47. Steel cable; 48. C-shaped plate; 49. Pressure bar; 50. Spring II; 51. Arc rod; 52. Colorimetric tube; 53. Rotating ring; 54. Push plate; 55. Slide cylinder; 56. Drive shaft; 57. Rotating wheel; 58. Arc spring plate; 6. Processing mechanism; 60. Reagent box; 601. Dropper; 602. Connecting tube; 603. Bending pressure plate; 604. Support block; 605. Arc triangular block; 61. Cylindrical tube; 610. Flexible claw; 611. Bottle stopper; 612. Spring rod; 613. Extension plate; 614. L-shaped limiting block; 615. Striking rod; 616. Spring III; 62. Spur gear; 620. Arc rack; 63. Abutment column; 7. Conveyor belt; 70. Unloading plate; 71. Tube opening; 72. Sealing plate. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 1 to 11 The embodiments of the present invention will be described in detail, but the present invention may be implemented in many different ways as defined and covered by the claims.

[0037] This application discloses a device for detecting sulfides in industrial wastewater. Specifically, this device is mainly used in the process of detecting sulfides in industrial wastewater. Technically, it can directly extract water from the industrial wastewater pond, and before extraction, the wastewater in the pond is stirred to ensure that the extracted water sample matches the actual conditions within the pond. In particular, after the wastewater is pumped into the device, it can automatically and quantitatively dispense the water sample and distilled water into a colorimetric tube, preventing manual intervention and thus increasing the quality and efficiency of sulfide detection. Furthermore, after sampling and bottling, this device can also clean the apparatus with distilled water to prevent water sample residue from contaminating subsequent water samples.

[0038] Example 1: Reference Figure 1As shown, a device for detecting sulfides in industrial wastewater includes an industrial wastewater tank 1, a detection chamber 10, a sampling mechanism 2, a cleaning mechanism 3, a quantitative mechanism 4, and a bottling mechanism 5. The detection chamber 10 is mounted on a support frame below the industrial wastewater tank 1. The sampling mechanism 2 is positioned between the detection chamber 10 and the industrial wastewater tank 1. The sampling mechanism 2 agitates the wastewater in the industrial wastewater tank 1 and draws the wastewater into the detection chamber 10, ensuring that the extracted water sample reflects the actual conditions within the industrial wastewater tank 1. A cleaning mechanism 3 is located inside the detection box 10 and below the sampling mechanism 2. The cleaning mechanism 3 is used to clean the device by drawing in distilled water after the sampling and bottling are completed, so as to prevent water sample residue in the device from contaminating the next water sample. A quantitative mechanism 4 is set between the sampling mechanism 2 and the cleaning mechanism 3. The quantitative mechanism 4 is used to quantitatively extract the water sample and distilled water. A bottling mechanism 5 is also set inside the detection box 10. The bottling mechanism 5 is used to automatically fill the water sample and distilled water into the colorimetric tube 51, thereby increasing the efficiency of sulfide detection.

[0039] In the specific implementation process, the testing personnel stir the wastewater in the industrial wastewater pool 1 through the sampling mechanism 2 and pump the wastewater in the industrial wastewater pool 1 into the testing box 10, so that the extracted water sample matches the actual situation in the industrial wastewater pool 1. The quantitative mechanism 4 quantitatively extracts the water sample and distilled water, and then the bottling mechanism 5 automatically fills the quantitative water sample and distilled water into the colorimetric tube 51, thereby increasing the efficiency of sulfide detection. Finally, after the sampling and bottling are completed, the cleaning mechanism 3 draws in distilled water to clean the device to prevent water sample residue in the device from contaminating the next water sample.

[0040] Reference Figure 2As shown, this is the sampling mechanism 2 in this application; specifically, the sampling mechanism 2 includes a water sample tank 20, a circular ring plate 21, a sampling tube 22, a four-way pipe 23, a strip plate 24, a semi-circular stirring plate 240, a water inlet pipe 25, and a filter plate 26. The water sample tank 20 is provided on the top of the inner wall of the detection box 10, and the water sample tank 20 is used to store water samples drawn from the industrial wastewater pool 1; a circular ring plate 21 is provided on the top of the detection box 10 and above the water sample tank 20, and a sampling tube 22 is rotatably arranged inside the circular ring plate 21, penetrating the industrial wastewater pool 1, and the sampling tube 22 can rotate under the restriction of the circular ring plate 21; a four-way pipe 23 is provided on the top of the sampling tube 22, and the sampling tube 22 can rotate when it rotates. The four-way pipe 23 rotates together with it; strip plates 24 are symmetrically arranged on both sides of the outer wall of the four-way pipe 23, and the rotation of the four-way pipe 23 can drive the strip plates 24 to rotate together; a semi-circular stirring plate 240 is arranged on the side of the strip plate 24 away from the four-way pipe 23, and the rotation of the strip plate 24 can drive the semi-circular stirring plate 240 to rotate together, and the wastewater in the industrial wastewater pool 1 is stirred by the semi-circular stirring plate 240; an inlet pipe 25 is arranged at the top of the four-way pipe 23, and the wastewater in the industrial wastewater pool 1 can enter the four-way pipe 23 through the inlet pipe 25; a filter plate 26 is arranged in the inlet pipe 25, and the filter plate 26 is used to prevent impurities in the industrial wastewater pool 1 from entering the inlet pipe 25.

[0041] In the specific implementation process, the sampling tube 22 rotates under the restriction of the annular plate 21. When the sampling tube 22 rotates, it can drive the four-way pipe 23 to rotate together. When the four-way pipe 23 rotates, it can drive the strip plate 24 to rotate together. When the strip plate 24 rotates, it can drive the semi-circular stirring plate 240 to rotate together. The semi-circular stirring plate 240 stirs the wastewater in the industrial wastewater pool 1. Then, the wastewater in the industrial wastewater pool 1 can enter the four-way pipe 23 through the inlet pipe 25. The wastewater in the four-way pipe 23 can enter the sampling tube 22. The wastewater in the sampling tube 22 can enter the water sample box 20. The water sample is stored in the water sample box 20.

[0042] Reference Figure 2As shown, this is the sampling mechanism 2 in this application; specifically, the sampling mechanism 2 also includes a dual-axis motor 27, a reciprocating lead screw 270, a hollow plate 28, a baffle 280, a connecting rod 281, and a circulation unit 29. The dual-axis motor 27 is installed at the bottom of the water sample box 20 and inside the detection box 10 through the motor housing. The top of the output shaft of the dual-axis motor 27 is provided with a reciprocating lead screw 270 that penetrates the water sample box 20. When the dual-axis motor 27 rotates, it can drive the reciprocating lead screw 270 to rotate together. The hollow plate 28 that slides inside the water sample box 20 is fitted on the reciprocating lead screw 270. When the reciprocating lead screw 270 rotates, it can drive the hollow plate 28 to move up and down reciprocally. A baffle 280 is slidably installed on the inner wall of the top of the four-way pipe 23. The baffle 280 is used to prevent wastewater in the industrial wastewater pool 1 from directly entering the four-way pipe 23. A connecting rod 281 is installed between the baffle 280 and the hollow plate 28 and inside the sampling tube 22. When the hollow plate 28 moves, the connecting rod 281 can drive the baffle 280 to move together. The output shaft of the dual-axis motor 27 is connected to the sampling tube 22 by belt drive. When the dual-axis motor 27 rotates, it can drive the sampling tube 22 to rotate together. Circulation units 29 are installed on both sides of the water sample tank 20. The circulation units 29 are used to transfer excess water sample in the water sample tank 20 back to the industrial wastewater pool 1.

[0043] In the specific implementation process, when the dual-shaft motor 27 rotates, it can drive the sampling tube 22 and the semi-circular stirring plate to rotate. During this process, when the dual-shaft motor 27 rotates, it can drive the reciprocating screw 270 to rotate together. When the reciprocating screw 270 rotates, it can drive the hollow plate 28 to move downward. When the hollow plate 28 moves downward, it can drive the baffle 280 to move downward together through the connecting rod 281. When the baffle 280 moves to the center position of the four-way pipe 23, the wastewater enters the four-way pipe 23 and the sampling tube 22 through the water inlet pipe 25. The wastewater in the sampling tube 22 will enter the hollow plate 28 in the water sample box 20, preventing the wastewater from directly entering the four-way pipe 23 before the semi-circular stirring plate rotates.

[0044] Reference Figure 3 As shown, this is the circulation unit 29 in this application; specifically, the circulation unit 29 includes a U-shaped tube 290 and a circulation pipe 291. A U-shaped tube 290 is provided on one side of the outer wall of the water sample tank 20, and a circulation pipe 291 connected to the bottom of the industrial wastewater pool 1 is provided on one side of the outer wall of the water sample tank 20 and below the U-shaped tube 290.

[0045] In the specific implementation process, when the hollow plate 28 drives the wastewater above the hollow plate 28 to the middle of the U-shaped tube 290 under the action of the reciprocating screw 270, the wastewater above the hollow plate 28 enters the space between the bottom of the hollow plate 28 and the water sample tank 20 through the U-shaped tube 290. Then the reciprocating screw 270 moves upward, and the baffle 280 prevents the wastewater from entering the top of the hollow plate 28 again. Finally, the hollow plate 28 moves downward again under the restriction of the reciprocating screw 270. As the space between the bottom of the hollow plate 28 and the water sample tank 20 becomes smaller, the water sample between the bottom of the hollow plate 28 and the water sample tank 20 will return to the industrial wastewater pool 1 through the circulation pipe 291, realizing the circulation of wastewater.

[0046] Reference Figure 4 As shown, this is the cleaning mechanism 3 in this application. Specifically, the cleaning mechanism 3 includes a water tank 30, an annular channel 31, a telescopic pipe 32, a partition frame 33, a cleaning channel 34, and an inclined plate 35. The water tank 30 is provided on the top of the inner wall of the detection box 10 away from the water sample box 20, and the water tank 30 is used to store distilled water. The top of the hollow plate 28 is provided with an annular channel 31, and the distilled water in the annular channel 31 can enter the hollow plate 28. The water tank 30 is provided with a telescopic pipe 32 with one end connected to the annular channel 31, and the distilled water in the water tank 30 can enter the annular channel 31 through the telescopic pipe 32. The outer wall of the hollow plate 28 and in contact with the inner wall of the water sample box 20 is provided with a partition frame 33, which is used to prevent the water sample above the hollow plate 28 and the partition frame 33 from flowing into the hollow plate 28 and the partition frame 33 below, while ensuring that the outer wall of the hollow plate 28 does not in contact with the inner wall of the water sample box 20. The outer wall of the hollow plate 28 is provided with multiple cleaning channels 34, and the distilled water flowing into the hollow plate 28 can be flushed towards the inner wall of the water sample tank 20 through the cleaning channels 34; the inner wall of the hollow plate 28 is provided with inclined plates 35 corresponding to the cleaning channels 34 by means of torsion springs, and the inclined plates 35 are used to prevent water samples from below the hollow plate 28 and inside the water sample tank 20 from entering the hollow plate 28.

[0047] In the specific implementation process, when the hollow plate 28 moves upward, the space between the bottom of the hollow plate 28 and the water sample tank 20 continuously increases, which leads to a decrease in pressure below the hollow plate 28 and below the water sample tank 20. This allows the distilled water in the water storage tank 30 to enter the annular channel 31 through the telescopic tube 32. The distilled water in the annular channel 31 can then enter the hollow plate 28. The distilled water flowing into the hollow plate 28 can then be flushed against the inner wall of the water sample tank 20 through the cleaning channel 34, thereby cleaning the water sample tank 20 and preventing water sample residue from contaminating the next water sample.

[0048] Reference Figure 5 and Figure 6As shown, this is the quantitative mechanism 4 in this application; specifically, the quantitative mechanism 4 includes a square water outlet pipe 40, a square plate 41, a chute 42, a first spring 43, a blocking plate 44, a roller 45, a steel cable 46, a U-shaped plate 47, a pressure rod 48, and a second spring 49. Square water outlet pipes 40 are symmetrically arranged on the outer walls of the water sample tank 20 and the water storage tank 30, allowing both water samples and distilled water in the water sample tank 20 and the water storage tank 30 to flow into the square water outlet pipes 40; the square water outlet... A square plate 41 is slidably mounted on the top of the inner wall of the pipe 40. The square plate 41 is used to isolate the connection between the water sample tank 20, the water storage tank 30, and the square outlet pipe 40. A groove 42 is provided inside the square outlet pipe 40 for the square plate 41 to slide. A spring 43 is provided between the groove 42 and the square plate 41. The spring 43 can always provide a thrust to the square plate 41 away from the water sample tank 20 and the water storage tank 30. The square outlet pipe 40 is away from the square plate 41. A blocking plate 44 is provided on the side, which is used for direct flow out of the square water outlet pipe 40; a roller 45 is rotatably installed on the top of the inner wall of the square water outlet pipe 40; a steel cable 46 is provided on the square plate 41, which is connected to the blocking plate 44 through the roller 45; when the square plate 41 moves, the blocking plate 44 can be moved together through the steel cable 46; the roller 45 is used to change the transmission direction of the steel cable 46 and reduce the wear between the steel cable 46 and the roller 45, thereby extending the service life of the steel cable 46; the blocking plates 44 are connected by a C-shaped plate 47; when one blocking plate 44 moves, the other blocking plate 44 can be moved together through the C-shaped plate 47; a pressure rod 48 is hinged to the top of the hollow plate 28 and abuts against the inner wall of the water sample tank 20; the pressure rod 48 is used to push the square plate 41 to move; a second spring 49 is provided between the pressure rod 48 and the hollow plate 28; the second spring 49 can always provide an upward thrust to the pressure rod 48.

[0049] In the specific implementation process, initially, the square plate 41 does not move into the square outlet pipe 40. When the hollow plate 28 moves the water sample above it into the square outlet pipe 40, the hollow plate 28 moves and moves the pressure rod 48 together. The water sample enters the square outlet pipe 40 and is prevented from flowing out by the blocking plate 44. Then, the hollow plate 28 continues to move down, and the pressure rod 48 abuts against the square plate 41, causing the square plate 41 to move into the square water pipe. When the square plate 41 moves, the blocking plate 44 moves down through the steel cable 46, thereby blocking the connection between the water sample tank 20 and the square outlet pipe 40, preventing the water sample in the water sample tank 20 from entering the square outlet pipe 40. At the same time, the downward movement of the blocking plate 44 prevents the blocking plate 44 from blocking the square outlet pipe 40, allowing the water sample in the square outlet pipe 40 to flow out, thus achieving quantitative outflow of the water sample.

[0050] When the blocking plate 44 on one side of the water sample tank 20 moves, it can drive the U-shaped plate 47 to move together. When the U-shaped plate 47 moves, it can drive the blocking plate 44 on one side of the water tank to move downward. When the blocking plate 44 on one side of the water tank moves downward, it drives the square plate 41 on one side of the water tank to move together through the steel cable 46 on one side of the water tank. The square plate 41 on one side of the water tank blocks the connection between the water storage tank 30 and the square water outlet pipe 40 on one side of the water tank, preventing the water sample in the water storage tank 30 from entering the square water outlet pipe 40 on one side of the water tank. At the same time, the downward movement of the blocking plate 44 on one side of the water tank prevents the blocking plate 44 on one side of the water tank from blocking the square water outlet pipe 40 on one side of the water tank, allowing the distilled water in the square water outlet pipe 40 on one side of the water tank to flow out, thereby realizing the quantitative outflow of distilled water.

[0051] Reference Figure 7 and Figure 8 As shown, this is the bottling mechanism 5 in this application. Specifically, the bottling mechanism 5 includes an arc-shaped rod 50, a colorimetric tube 51, a rotating ring 52, a pusher plate 53, a slide cylinder 54, a drive shaft 55, a rotating wheel 56, a rotating shaft 57, and an arc-shaped spring plate 58. A pair of arc-shaped rods 50 are symmetrically arranged on the inner wall of the detection box 10 and below the square water outlet pipe 40. Multiple colorimetric tubes 51 are slidably arranged between the arc-shaped rods 50, and the colorimetric tubes 51 can slide under the restriction of the arc-shaped rods 50. Rotating rings 52 are rotatably arranged on the outer walls of the water sample box 20 and the water storage box 30. The rotating rings 52 are connected to the dual-axis motor 27 through belt drive. When the dual-axis motor 27 rotates, it can drive the rotating rings 52 to rotate together. The rotating rings 52 are connected to each other through belt drive. When one rotating ring 52 rotates, it can drive the other rotating ring 52 to rotate together. Multiple pusher plates 53 are evenly arranged around the circumference of the rotating rings 52, which abut against the colorimetric tubes 51. When the rotating rings 52 rotate, they can drive the pusher plates to rotate together. The push plate 53 rotates together, and the push plate 53 intermittently pushes the colorimetric tube 51 to move when it rotates; the outer wall of the water sample box 20 and the water storage tank 30 and below the arc rod 50 are both provided with a slide cylinder 54, and the colorimetric tube 51 can slide in the slide cylinder 54; the outer wall of the motor housing of the dual-axis motor 27 is rotatably provided with a drive shaft 55, and the drive shaft 55 and the dual-axis motor 27 are connected by gear transmission. When the dual-axis motor 27 rotates, it can drive the drive shaft 55 to rotate together; a pair of rotating wheels 56 are symmetrically rotated on the drive shaft 55 and located below the slide cylinder 54. When the drive shaft 55 rotates, it can drive the rotating wheels 56 to rotate together; a rotating shaft 57 is uniformly rotated around the circumference of the rotating wheels 56. When the rotating wheels 56 rotate, it can drive the rotating shaft 57 to rotate together; an arc-shaped spring plate 58 is provided at the end of the rotating shaft 57 away from the rotating wheels 56. When the rotating shaft 57 rotates, it can drive the arc-shaped spring plate 58 to rotate together. The colorimetric tube 51 can be clamped by the cooperation between the arc-shaped spring plates 58.

[0052] In the specific implementation process, multiple colorimetric tubes 51 slide under the constraint of the arc-shaped rod 50, causing the colorimetric tubes 51 to move to the lowest end of the arc-shaped rod 50, so that the water sample and distilled water in the square water outlet tube 40 flow precisely into the corresponding colorimetric tubes 51. Then, when the dual-axis motor 27 rotates, it drives the rotating rings 52 to rotate together through the belt drive. When one rotating ring 52 rotates, it drives the other rotating ring 52 to rotate together through the belt drive. When the rotating rings 52 rotate, they drive the push plate 53 to rotate together. When the push plate 53 rotates, it intermittently pushes the colorimetric tubes 51 towards the slide tube 54, so that the tubes are filled with water sample or distilled water. The colorimetric tube 51 of distilled water moves inside the slide 54. When the colorimetric tube 51 moves out of the slide 54, it can enter between the arc-shaped spring plates 58. The arc-shaped spring plates 58 clamp the colorimetric tube 51. When the dual-shaft motor 27 rotates, it can also drive the drive shaft 55 to rotate together. When the drive shaft 55 rotates, it can drive the rotating wheel 56 to rotate together. When the rotating wheel 56 rotates, it can drive the rotating shaft 57 to rotate together. When the rotating shaft 57 rotates, it can drive the arc-shaped spring plates 58 to rotate together. When the arc-shaped spring plates 58 rotate, they drive the clamped colorimetric tube 51 to rotate, thereby realizing the bottling of water samples and distilled water.

[0053] Example 2: Reference Figure 9 and Figure 10As shown in Example 1, to further reduce the operation of testing personnel and thus further process the bottled water samples and distilled water, in this specific embodiment, a processing mechanism 6 is arranged around the circumference of the rotating wheel 56. Specifically, the processing mechanism 6 includes a reagent box 60, a dropper 601, a connecting tube 602, a bending pressure plate 603, a support block 604, an arc-shaped triangular block 605, a cylindrical tube 61, a flexible claw 610, a bottle stopper 611, a spring rod 612, an extension plate 613, an L-shaped limiting block 614, a striking rod 615, a spring 616, a spur gear 62, an arc-shaped rack 620, and a contact post 63. The reagent box 60 is provided at the bottom of the water sample box 20 and the water storage tank 30. The reagent box 60 is used to store sulfide reagents. A dropper 601 is arranged between the bottom of the outer wall of the reagent box 60 and the rotating wheel 56 through a bracket. The dropper 601 is used to dispense small amounts of water. A sulfide reagent is dripped into the colorimetric tube 51. The dropper 601 and the reagent box 60 are connected by a connecting tube 602, allowing the sulfide reagent in the reagent box 60 to enter the dropper 601 through the connecting tube 602. A bending pressure plate 603 is rotatably fitted on the dropper 601, which is used to squeeze the head of the dropper 601 to make the sulfide reagent drip out. A support block 604 is provided on each side of the rotating shaft 57. An arc-shaped triangular block 605 that cooperates with the bending pressure plate 603 is provided on the side of the support block 604 away from the rotating shaft 57. When the rotating shaft 57 rotates, it can drive the support block 604 to rotate together. When the support block 604 rotates, it can drive the arc-shaped triangular block 605 to rotate together. When the arc-shaped triangular block 605 comes into contact with the bending pressure plate 603, it pushes the bending pressure plate 603 to rotate, thereby squeezing the head of the dropper 601.

[0054] A cylindrical tube 61 is symmetrically arranged on the outer wall of the motor housing of the dual-axis motor 27, in front of the dropper 601. Multiple flexible claws 610 are provided at the bottom of the cylindrical tube 61. Multiple stoppers 611 that cooperate with the colorimetric tube 51 are slidably arranged inside the cylindrical tube 61. The flexible claws 610 prevent the stoppers 611 from falling directly out of the cylindrical tube 61. The stoppers 611 are used to seal the colorimetric tube 51. A spring rod 612 with a telescopic end that abuts against the stopper 611 is provided inside the cylindrical tube 61. An extension plate 613 is provided through the cylindrical tube 61 on the side of the telescopic section of the spring rod 612 near the support block 604. The telescopic end of the spring rod 612 always abuts against the top stopper 611. When the telescopic section of the spring rod 612 moves, it can drive the extension plate 613 to move together, so that the distance between the extension plate 613 and the top stopper 611 remains constant. An L-shaped limiting block 614 is provided on the outer wall, and a striking rod 615 is hinged to the top of the support block 604. When the support block 604 rotates, it drives the striking rod 615 to rotate as well. When the striking rod 615 abuts against the L-shaped limiting block 614, it will drive the striking rod 615 to rotate. Then the support block 604 continues to rotate, and the striking rod 615 no longer abuts against the L-shaped limiting block 614, thereby striking the extension plate 613 and causing the extension plate 613 to move downward. When the extension plate 613 moves downward, it can drive the telescopic section of the spring rod 612 to move together. When the telescopic section of the spring rod 612 moves downward, it will push the lowest end of the bottle stopper 611 to overcome the flexible claw 610, move out of the cylindrical tube 61, and block the colorimetric tube 51. A spring 616 is provided between the striking rod 615 and the support block 604. The spring 616 can always provide an upward thrust for the striking rod 615.

[0055] On the other side, spur gears 62 are fitted onto the rotating shaft 57. The outer wall of the motor housing of the dual-shaft motor 27 is provided with an arc-shaped rack 620 that meshes with the spur gears 62. When the rotating wheel 56 rotates, it drives the rotating shaft 57 and the spur gears 62 to rotate together. When the spur gears 62 mesh with the arc-shaped rack 620, the spur gears 62 rotate under the drive of the arc-shaped rack 620. The rotation of the spur gears 62 drives the rotating shaft 57 and the arc-shaped spring plate 58 to rotate together. When rotating, it can drive the colorimetric tube 51 to rotate together, so as to achieve full mixing of water sample, distilled water and sulfide reagent in the colorimetric tube 51; the bottom of the inner wall of the detection box 10 is provided with a contact post 63 that abuts against the arc-shaped spring sheet 58. When the arc-shaped spring sheet 58 abuts against the contact post 63 as the rotating wheel 56 rotates, the arc-shaped spring sheet 58 moves along the outer wall of the contact post 63, thereby deforming the arc-shaped spring sheet 58 and releasing the clamping of the arc-shaped spring sheet 58 against the colorimetric tube 51.

[0056] In the specific implementation process, when the colorimetric tube 51 is clamped and fixed by the arc-shaped spring plate 58, the rotation of the rotating shaft 57 can drive the support block 604 to rotate together. The rotation of the support block 604 can drive the arc-shaped triangular block 605 to rotate together. When the arc-shaped triangular block 605 abuts against the bending pressure plate 603, it pushes the bending pressure plate 603 to rotate, thereby causing the bending pressure plate 603 to squeeze the head of the dropper 601, so that the sulfide reagent in the dropper 601 drips into the colorimetric tube 51; when the arc-shaped triangular block When 605 no longer contacts the bending pressure plate 603, the head of the dropper 601 returns to its original shape, allowing the sulfide reagent in the reagent box 60 to enter the dropper 601 through the connecting pipe 602. When the support block 604 rotates, it drives the striking rod 615 to rotate as well. When the striking rod 615 contacts the L-shaped limiting block 614, it will rotate. Then, the support block 604 continues to rotate, and the striking rod 615 no longer contacts the L-shaped limiting block 614, thus striking the extension plate 613. The extension plate 613 moves downward, which in turn moves the telescopic section of the spring rod 612. As the telescopic section of the spring rod 612 moves downward, it pushes the lowest stopper 611 to overcome the flexible claw 610, causing it to move out of the cylindrical tube 61 and block the colorimetric tube 51. When the rotating wheel 56 rotates, it drives the rotating shaft 57 and the spur gear 62 to rotate together. When the spur gear 62 meshes with the arc-shaped rack 620, the spur gear 62 rotates under the drive of the arc-shaped rack 620. When the spur gear 62 rotates, it can drive the rotating shaft 57 and the arc-shaped spring plate 58 to rotate together. When the arc-shaped spring plate 58 rotates, it can drive the colorimetric tube 51 to rotate together, so as to achieve full mixing of water sample, distilled water and sulfide reagent in the colorimetric tube 51. When the arc-shaped spring plate 58 contacts the contact post 63 as the rotating wheel 56 rotates, it causes the arc-shaped spring plate 58 to move along the outer wall of the contact post 63, thereby deforming the arc-shaped spring plate 58 and releasing the clamping of the arc-shaped spring plate 58 on the colorimetric tube 51.

[0057] Reference Figure 11 As shown, a conveyor belt 7 is provided at the bottom of the inner wall of the test box 10 and below the rotating wheel 56. The conveyor belt 7 is used to transport the colorimetric tube 51. A discharge plate 70 is provided on the side of the conveyor belt 7 away from the dual-axis motor 27. A tube-taking port 71 is opened on the test box 10. A sealing plate 72 located at the tube-taking port 71 is slidably arranged inside the test box 10.

[0058] In the specific implementation process, when the arc-shaped spring plate 58 is released from the clamp of the colorimetric tube 51, the colorimetric tube 51 will fall onto the conveyor belt 7. The conveyor belt 7 will then transport the colorimetric tube 51 to the unloading plate 70. The colorimetric tube 51 will move along the unloading plate 70 to the bottom of the testing box 10. The testing personnel can then pull the sealing plate 72 to remove the processed water sample colorimetric tube 51 and the distilled water colorimetric tube 51 through the tube retrieval port 71.

[0059] Furthermore, the present invention also provides a method for detecting sulfides in industrial wastewater, comprising the following steps: Step 1: When the dual-shaft motor 27 rotates, it drives the sampling tube 22 to rotate under the constraint of the annular plate 21. The rotation of the sampling tube 22 drives the four-way pipe 23 to rotate as well. The rotation of the four-way pipe 23 drives the strip plate 24 to rotate as well. The rotation of the strip plate 24 drives the semi-circular stirring plate 240 to rotate as well. The semi-circular stirring plate 240 stirs the wastewater in the industrial wastewater tank 1. During this process, the rotation of the dual-shaft motor 27 drives the reciprocating screw 270 to rotate as well. When the screw 270 rotates, it drives the hollow plate 28 to move downwards. As the hollow plate 28 moves downwards, it drives the baffle 280 to move downwards along with it via the connecting rod 281. When the baffle 280 moves to the center position of the four-way pipe 23, wastewater enters the four-way pipe 23 and the sampling pipe 22 through the inlet pipe 25. The wastewater in the sampling pipe 22 then enters the water sample tank 20 above the hollow plate 28, preventing wastewater from directly entering the four-way pipe 23 before the semi-circular stirring plate rotates. Step 2: When the hollow plate 28 drives the wastewater above it to the middle of the U-shaped tube 290 under the action of the reciprocating screw 270, the wastewater above the hollow plate 28 enters the space between the bottom of the hollow plate 28 and the water sample tank 20 through the U-shaped tube 290. Then the reciprocating screw 270 moves upward, and the baffle 280 prevents the wastewater from entering the top of the hollow plate 28 again. Finally, the hollow plate 28 moves downward again under the restriction of the reciprocating screw 270. As the space between the bottom of the hollow plate 28 and the water sample tank 20 becomes smaller, the water sample between the bottom of the hollow plate 28 and the water sample tank 20 will return to the industrial wastewater pool 1 through the circulation pipe 291, realizing the circulation of wastewater.

[0060] Step 3: When the hollow plate 28 moves upward, the space between the bottom of the hollow plate 28 and the water sample tank 20 continuously increases, which reduces the pressure below the hollow plate 28 and the bottom of the water sample tank 20. This allows the distilled water in the water storage tank 30 to enter the annular channel 31 through the telescopic tube 32. The distilled water in the annular channel 31 can then enter the hollow plate 28. The distilled water flowing into the hollow plate 28 can then be flushed against the inner wall of the water sample tank 20 through the cleaning channel 34, thereby cleaning the water sample tank 20 and preventing water sample residue from contaminating the next water sample.

[0061] Step 4: Initially, the square plate 41 has not moved into the square outlet pipe 40. When the hollow plate 28 moves the water sample above it into the square outlet pipe 40, the hollow plate 28 moves and moves the pressure rod 48 together. The water sample will enter the square outlet pipe 40 and the blocking plate 44 will prevent the water sample in the square outlet pipe 40 from flowing out. Then the hollow plate 28 continues to move down, and the pressure rod 48 abuts against the square plate 41, so that the square plate 41 moves into the square water pipe. When the square plate 41 moves, the blocking plate 44 moves down through the steel cable 46, thereby blocking the connection between the water sample tank 20 and the square outlet pipe 40, preventing the water sample in the water sample tank 20 from entering the square outlet pipe 40. At the same time, the blocking plate 44 moves down so that the blocking plate 44 no longer blocks the square outlet pipe 40, so that the water sample in the square outlet pipe 40 can flow out, thereby realizing the quantitative outflow of the water sample.

[0062] When the blocking plate 44 on one side of the water sample tank 20 moves, it can drive the U-shaped plate 47 to move together. When the U-shaped plate 47 moves, it can drive the blocking plate 44 on one side of the water tank to move downward. When the blocking plate 44 on one side of the water tank moves downward, it drives the square plate 41 on one side of the water tank to move together through the steel cable 46 on one side of the water tank. The square plate 41 on one side of the water tank blocks the connection between the water storage tank 30 and the square water outlet pipe 40 on one side of the water tank, preventing the water sample in the water storage tank 30 from entering the square water outlet pipe 40 on one side of the water tank. At the same time, the downward movement of the blocking plate 44 on one side of the water tank prevents the blocking plate 44 on one side of the water tank from blocking the square water outlet pipe 40 on one side of the water tank, allowing the distilled water in the square water outlet pipe 40 on one side of the water tank to flow out, thereby realizing the quantitative outflow of distilled water.

[0063] Step 5: Multiple colorimetric tubes 51 slide under the constraint of the arc-shaped rod 50, causing the colorimetric tubes 51 to move to the lowest end of the arc-shaped rod 50. This allows the water sample and distilled water in the square outlet tube 40 to flow precisely into the corresponding colorimetric tube 51. Then, when the dual-axis motor 27 rotates, it drives the rotating rings 52 to rotate together via belt drive. When one rotating ring 52 rotates, it drives the other rotating ring 52 to rotate together via belt drive. When the rotating rings 52 rotate, they drive the push plate 53 to rotate together. When the push plate 53 rotates, it intermittently pushes the colorimetric tubes 51 towards the slide tube 54, so that the tubes filled with water sample or distilled water... Colorimetric tube 51 moves within slide cylinder 54. When colorimetric tube 51 moves out of slide cylinder 54, it can enter between arc-shaped spring plates 58. The arc-shaped spring plates 58 clamp the colorimetric tube 51. When the dual-axis motor 27 rotates, it can also drive the drive shaft 55 to rotate together. When the drive shaft 55 rotates, it can drive the rotating wheel 56 to rotate together. When the rotating wheel 56 rotates, it can drive the rotating shaft 57 to rotate together. When the rotating shaft 57 rotates, it can drive the arc-shaped spring plates 58 to rotate together. When the arc-shaped spring plates 58 rotate, they drive the clamped colorimetric tube 51 to rotate, thereby realizing the bottling of water samples and distilled water.

[0064] Step 6: When the colorimetric tube 51 is clamped and fixed by the arc-shaped spring plate 58, the rotation of the rotating shaft 57 can drive the support block 604 to rotate together. The rotation of the support block 604 can drive the arc-shaped triangular block 605 to rotate together. When the arc-shaped triangular block 605 abuts against the bending pressure plate 603, it pushes the bending pressure plate 603 to rotate, thereby causing the bending pressure plate 603 to squeeze the head of the dropper 601, so that the sulfide reagent in the dropper 601 drips into the colorimetric tube 51; when the arc-shaped triangular block 605 does not... When it comes into contact with the bending pressure plate 603 again, the head of the dropper 601 returns to its original shape, allowing the sulfide reagent in the reagent box 60 to enter the dropper 601 through the connecting pipe 602; when the support block 604 rotates, it drives the striking rod 615 to rotate together. When the striking rod 615 comes into contact with the L-shaped limiting block 614, it will drive the striking rod 615 to rotate. Then the support block 604 continues to rotate, and the striking rod 615 no longer comes into contact with the L-shaped limiting block 614, thereby striking the extension plate 613 and driving the extension plate 613 to rotate. When the extended plate 613 moves downward, it drives the telescopic section of the spring rod 612 to move as well. As the telescopic section of the spring rod 612 moves downward, it pushes the lowest-end stopper 611 to overcome the flexible claw 610, causing it to move out of the cylindrical tube 61 and block the colorimetric tube 51. When the rotating wheel 56 rotates, it drives the rotating shaft 57 and the spur gear 62 to rotate together. When the spur gear 62 meshes with the arc-shaped rack 620, the spur gear 62 rotates under the drive of the arc-shaped rack 620. When gear 62 rotates, it drives rotating shaft 57 and arc-shaped spring plate 58 to rotate together. When arc-shaped spring plate 58 rotates, it drives colorimetric tube 51 to rotate together, so as to achieve full mixing of water sample, distilled water and sulfide reagent in colorimetric tube 51. When arc-shaped spring plate 58 contacts the contact post 63 as rotating wheel 56 rotates, it moves along the outer wall of contact post 63, thereby deforming arc-shaped spring plate 58 and releasing arc-shaped spring plate 58 from clamping colorimetric tube 51.

[0065] Step 7: When the curved spring plate 58 is released from the clamp of the colorimetric tube 51, the colorimetric tube 51 will fall onto the conveyor belt 7. The conveyor belt 7 will then transport the colorimetric tube 51 to the unloading plate 70. The colorimetric tube 51 will move along the unloading plate 70 to the bottom of the testing box 10. The testing personnel can then pull the sealing plate 72 to remove the processed water sample colorimetric tube 51 and the distilled water colorimetric tube 51 through the tube retrieval port 71.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0067] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for detecting sulfides in industrial wastewater, comprising an industrial wastewater tank (1), characterized in that: The industrial wastewater pool (1) is provided with a detection box (10) below through a support, a sampling mechanism (2) is arranged between the detection box (10) and the industrial wastewater pool (1), a cleaning mechanism (3) is arranged in the detection box (10) and below the sampling mechanism (2), a quantitative mechanism (4) is arranged between the sampling mechanism (2) and the cleaning mechanism (3), and a bottle filling mechanism (5) is further arranged in the detection box (10). The sampling mechanism (2) comprises a water sample box (20) arranged on the top of the inner wall of the detection box (10), a circular ring plate (21) is arranged on the top of the detection box (10) and above the water sample box (20), a sampling pipe (22) penetrating through the industrial wastewater pool (1) is rotatably arranged in the circular ring plate (21), a four-way pipe (23) is arranged on the top of the sampling pipe (22), strip plates (24) are symmetrically arranged on the outer wall of the four-way pipe (23), and semicircular stirring plates (240) are arranged on the side, away from the four-way pipe (23), of the strip plates (24).

2. The apparatus for detecting sulfides in industrial wastewater of claim 1, wherein: The sampling mechanism (2) further comprises a double-shaft motor (27) arranged in the detection box (10) and on the bottom of the water sample box (20) through a motor housing, a reciprocating wire rod (270) penetrating through the water sample box (20) is arranged on the top of the output shaft of the double-shaft motor (27), a hollow plate (28) sliding in the water sample box (20) is fitted on the reciprocating wire rod (270), a baffle (280) is slidingly arranged on the inner wall of the top of the four-way pipe (23), a connecting rod (281) is arranged between the baffle (280) and the hollow plate (28) and in the sampling pipe (22), and circulating units (29) are arranged on the two sides of the water sample box (20).

3. A device for detecting sulfides in industrial wastewater according to claim 2, characterized in that: The circulating unit (29) comprises a U-shaped pipe (290) arranged on one side of the outer wall of the water sample box (20), and a circulating pipe (291) connected with the bottom of the industrial wastewater pool (1) is arranged on one side of the outer wall of the water sample box (20) and below the U-shaped pipe (290).

4. The apparatus for detecting sulfides in industrial wastewater of claim 2, wherein: The cleaning mechanism (3) comprises a water storage tank (30) arranged on the top of the inner wall of the detection box (10) and away from the water sample box (20), a circular ring channel (31) is arranged on the top of the hollow plate (28), and a telescopic pipe (32) in communication with the circular ring channel (31) is arranged in the water storage tank (30).

5. A device for detecting sulfides in industrial wastewater according to claim 4, characterized in that: The cleaning mechanism (3) further comprises a separation frame (33) arranged on the outer wall of the hollow plate (28) and abutting against the inner wall of the water sample box (20), a plurality of cleaning channels (34) are formed in the outer wall of the hollow plate (28), and an inclined plate (35) corresponding to the cleaning channel (34) is hingedly arranged on the inner wall of the hollow plate (28) through a torsional spring.

6. A device for detecting sulfides in industrial wastewater according to claim 5, characterized in that: The quantitative mechanism (4) comprises square water outlet pipes (40) symmetrically arranged on the outer walls of the water sample box (20) and the water storage tank (30), and square plates (41) are slidingly arranged on the inner walls of the square water outlet pipes (40).

7. A device for detecting sulfides in industrial wastewater according to claim 6, characterized in that: The quantitative mechanism (4) further comprises a blocking plate (44) arranged on the side of the square water outlet pipe (40) away from the square plate (41), a roller (45) is arranged on the top of the inner wall of the square water outlet pipe (40), a steel cable (46) is arranged on the square plate (41) and connected with the roller (45) and the blocking plate (44), the blocking plates (44) are connected through a Z-shaped plate (47), and a pressing rod (48) is arranged on the top of the hollow plate (28) and abuts against the inner wall of the water sample box (20).

8. The apparatus for detecting sulfides in industrial wastewater of claim 4, wherein: The bottling mechanism (5) comprises a pair of arc-shaped rods (50) symmetrically arranged on the inner wall of the detection box (10) and located below the square water outlet pipe (40), a plurality of colorimetric tubes (51) are slidably arranged between the arc-shaped rods (50), rotating rings (52) are rotatably arranged on the outer walls of the water sample box (20) and the water storage box (30), a plurality of push plates (53) abutting against the colorimetric tubes (51) are uniformly arranged on the circumferences of the rotating rings (52), and sliding cylinders (54) are arranged on the outer walls of the water sample box (20) and the water storage box (30) and located below the arc-shaped rods (50).

9. A device for detecting sulfides in industrial wastewater according to claim 8, characterized in that: The bottling mechanism (5) further comprises a transmission shaft (55) rotatably arranged on the outer wall of the motor housing of the double-shaft motor (27), a pair of rotating wheels (56) located below the sliding cylinders (54) are symmetrically rotatably arranged on the transmission shaft (55), rotating shafts (57) are uniformly rotatably arranged on the circumferences of the rotating wheels (56), and arc-shaped spring plates (58) are arranged on the ends of the rotating shafts (57) away from the rotating wheels (56).

10. A method for detecting sulfides in industrial wastewater, comprising a device for detecting sulfides in industrial wastewater according to any one of claims 1 to 9, characterized in that, The detection method comprises the following steps: S1, wastewater sampling: the wastewater in the industrial wastewater tank (1) is rotated by the semicircular stirring plate (240), and then the wastewater is sucked into the water sample box (20) by the hollow plate (28) moving downward; S2, quantitative bottling: the blocking plate (44) is moved by pushing the square plate (41), so that the quantitative water sample and distilled water are poured into the colorimetric tube (51); S3, device cleaning: after the sampling is completed, the hollow plate (28) moves upward, and in the process of moving upward, the distilled water is sucked into the water sample box (20) through the telescopic pipe (32), so that the water sample box (20) is cleaned.

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