Device and method for detecting and analyzing multiple metal ions in sewage

Abstract

The present invention discloses a detection and analysis device and method for multiple metal ions in sewage, belonging to the technical field of sewage heavy metal detection. The device includes a detection box, a sealed box cover, a pure water bottle, a regulating valve, a water outlet hose, a filling head, a quantitative component, a fixing component and a positioning component. By rotating a rotating cap in the quantitative component, a limit baffle contacts the outer wall of a lower protruding plate. At this time, the opening of the water storage tank can be turned downward, and the pure water inside the water storage tank can enter the inside of the water outlet hose and finally be added to the inside of a colorimetric bottle through the filling head. The torsion spring shaft is set so that the valve core can be released after rotation and automatically reset, so that the water added to the colorimetric bottle each time is quantitative.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage heavy metal detection, and in particular relates to a device and method for detecting and analyzing multiple metal ions in sewage. Background Art

[0002] Industrial wastewater, including production wastewater, sewage, and cooling water, refers to the wastewater and waste liquids generated during industrial production. These wastewaters contain industrial materials, intermediates, by-products, and pollutants that are lost to the water. Industrial wastewater is diverse and complex, containing various heavy metals. Direct discharge not only pollutes the environment but also poses a significant risk to human health. Therefore, appropriate purification measures are necessary for its disposal.

[0003] In terms of environmental pollution, heavy metals primarily refer to metals or metalloids such as mercury, cadmium, lead, chromium, and arsenic. They also encompass common heavy metals with a degree of toxicity, such as copper, zinc, nickel, cobalt, and tin. This article briefly discusses the hazards of heavy metals from several perspectives, including their natural origin, toxicity, activity and persistence, biodegradability, bioaccumulation, and additive effects on organisms.

[0004] Atomic absorption spectrometry is a new instrumental analysis method established in the 1950s. It complements atomic emission spectrometry, which is mainly used for qualitative analysis of inorganic elements, and becomes the main means of quantitative elemental analysis of inorganic compounds.

[0005] The atomic absorption analysis process is as follows: 1. Prepare the sample into a solution (and make a blank at the same time); 2. Prepare a series of calibration solutions (standard samples) with known concentrations of the analytical elements; 3. Measure the corresponding values of the blank and standard samples in turn; 4. Draw a calibration curve based on the above corresponding values; 5. Measure the corresponding values of the unknown sample; 6. Calculate the concentration value of the sample based on the calibration curve and the corresponding values of the unknown sample.

[0006] In order to facilitate the treatment of heavy metal wastewater, it is often necessary to detect heavy metals in the wastewater. However, when using the existing heavy metal detection device, a dropper is required to put about 10 ml of pure water into the colorimetric bottle to perform a blank calibration on the equipment. When carrying the detection device to detect sewage, due to environmental restrictions, it is not easy to add a certain amount of pure water into the colorimetric bottle, making it difficult to detect sewage in a complex environment. Summary of the Invention

[0007] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0008] In order to solve the problem that the existing heavy metal detection device in the above background technology needs to use a dropper to put about 10 ml of pure water into the inside of the colorimetric bottle to perform blank calibration on the equipment when in use, and when carrying the detection device to detect sewage, due to environmental restrictions, it is not easy to add a certain amount of pure water into the inside of the colorimetric bottle, making it difficult to detect sewage in a complex environment, the present invention adopts the following technical solution.

[0009] A detection and analysis device for multiple metal ions in sewage comprises a detection box body, a sealed box cover hinged on one side of the upper end of the detection box body, an outer wall of the sealed box cover is detachably connected to a lock head, a lock buckle is provided on the outer wall of the detection box body, a protrusion is provided on the upper end of the detection box body, a lifting handle is fixedly connected to the outer wall of one side of the detection box body, a display screen is provided on one side of the upper end of the detection box body, a colorimetric slot is provided on the other side, a light shielding cover is plugged into the upper end of the colorimetric slot, an inner top of the sealed box cover when it is opened is detachably connected to a regulating valve, a jack is provided on the outer wall of the sealed box cover above the regulating valve, a pure water bottle is installed on the jack, and the regulating valve is opened. The bottom of the regulating valve is detachably connected to a water outlet hose, the inside of the sealed box cover is detachably connected to multiple pipe clamps, the pipe clamps fix the water outlet hose, the end of the water outlet hose is detachably connected to a filling head, the inner wall of the sealed box cover is detachably connected to a support seat, the filling head is snap-connected to the support seat, a quantitative component is installed inside the regulating valve, the quantitative component can release a certain amount of pure water each time, fixing components are installed on both sides of the upper end of the detection box body near the sealed box cover, the fixing components fix the sealed box cover after it is opened, positioning components are installed on the support seat and the filling head, the positioning component can fix the filling head to the upper end of the support seat.

[0010] Preferably, an inner groove is provided on one side of the upper end of the detection box body, and a plurality of drainage holes are provided on the inner wall of the inner groove close to the outer wall of the detection box body.

[0011] Preferably, the outer wall of the water outlet hose is fixedly connected to an air intake branch pipe, the outer wall of the sealing box cover is provided with a through hole, the end of the air intake branch pipe is connected and communicated with the through hole, and a filter assembly is installed on the sealing box cover, which can filter the air entering the water outlet hose.

[0012] Preferably, the sealed box cover is fixedly connected to the inner wall near the display screen after closing, a protective cushion is provided on the outside of the storage box, a mounting groove is provided on one side of the storage box, a pull-out box is slidably connected to the inside of the mounting groove, an opening is provided on the front of the pull-out box, a plurality of Velcro straps are provided on the inner wall of the pull-out box, an inner buckle groove is provided on one side of the outer wall of the pull-out box, and the side wall of the pull-out box is snapped into the inside of the mounting groove when closed.

[0013] Preferably, the inside of the sealed box cover is detachably connected to a wastewater tank, the upper end of the wastewater tank is fixedly connected to a water inlet pipe passing through the outer wall of the sealed box cover, the bottom of the wastewater tank is fixedly connected to a drain pipe passing through the bottom of the sealed box cover, and the outer walls of the water inlet pipe and the drain pipe are threadedly connected with sealing pipe caps.

[0014] Preferably, the quantitative component includes a rotary valve core, a torsion spring shaft, a water storage tank, a rotating cap, a limit baffle and a protruding plate. The internal rotation of the regulating valve is connected to the rotary valve core, one end of the rotary valve core is rotatably connected to the torsion spring shaft, the torsion spring shaft is connected to the internal part of the regulating valve, the outer wall of the rotary valve core is provided with a water storage tank, the torsion spring shaft makes the water storage tank face upward under normal conditions, the other end of the rotary valve core is fixedly connected to the rotating shaft, the rotating shaft passes through the regulating valve and is fixedly connected to the rotating cap, the outer wall of the rotating cap is fixedly connected to the protruding plate, and the outer walls of the regulating valve above and below the rotating cap are fixedly connected to the limit baffle.

[0015] Preferably, the positioning assembly includes a positioning column and a positioning socket. The bottom sides of the filling head are fixedly connected with the positioning columns. The upper sides of the support seat are provided with positioning sockets, and the positioning columns are inserted into the positioning sockets.

[0016] Preferably, the fixing assembly includes a sliding groove, a sliding block and a locking rod. Sliding grooves are provided on both sides of the upper end of the detection box body. The sliding blocks are slidingly connected inside the sliding grooves on both sides. The sliding blocks are fixedly connected to the outer wall of the sealing box cover near the sliding block. The locking rod is pushed to pass through the detection box body and plug into the sealing box cover.

[0017] Preferably, the filter assembly includes a filter plate and a filter plate, the filter plate is plugged into the contact surface between the sealing box cover and the detection box body, the filter plate covers the inside of the through hole, and the sealing box cover is provided with a through groove on the outer wall of the filter plate.

[0018] The present invention also discloses a method for detecting multiple metal ions in sewage, including the above-mentioned detection and analysis device for multiple metal ions in sewage. The detection method comprises the following steps:

[0019] Step 1: Filter and dilute the sample to be tested to eliminate interfering substances;

[0020] Step 2: Put pure water into the colorimetric bottle, and put the colorimetric bottle into the detection box to calibrate the detection box;

[0021] Step 3: Place the sample in a colorimetric bottle and then into the detection box. Select an appropriate wavelength for measurement and determine the content of the heavy metal atoms in the sample by measuring the degree of absorption of specific light.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By rotating the rotating cap in the quantitative assembly, the limit baffle contacts the outer wall of the protruding plate below. At this time, the opening of the water storage tank can be turned downward, and the pure water inside the water storage tank can enter the inside of the water outlet hose, and finally added to the colorimetric bottle through the filling head. The torsion spring shaft can be automatically reset after the rotary valve core is rotated and released, so that the water added to the colorimetric bottle each time is quantitative.

[0024] 2. The air inlet branch pipe allows external air to enter the water outlet hose, so that pure water can flow out from the filling head. The filter plate in the filter assembly can filter the air entering from the outside to prevent external impurities from contaminating the pure water. The through-groove can make it easier to disassemble and install the filter plate.

[0025] 3. By inserting the locking rod in the fixed assembly into the sealed box cover, the supporting force of the sealed box cover can be increased to prevent the sealed box cover from closing during the inspection process or due to the weight of the pure water bottle, and the posture of the sealed box cover after opening can be fixed.

[0026] 4. The filling head can be positioned and fixed by inserting the positioning column in the positioning assembly into the interior of the positioning socket to prevent the filling head from falling off from the interior of the support seat.

[0027] 5. The protective cushion can protect the display screen after the sealed box cover is closed. The items needed for the test can be fixed through the Velcro strap, and the pull-out box can be easily pulled out through the inner buckle groove.

[0028] 6. By unscrewing the sealing cap on the water inlet pipe, the wastewater generated during the test can be poured into the wastewater tank for storage. By unscrewing the sealing cap on the drain pipe, the sewage inside the wastewater tank can be discharged to the outside, which can avoid polluting the environment and can better store and collect the wastewater generated by the test, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a device for detecting and analyzing multiple metal ions in sewage according to the present invention;

[0030] Figure 2 Schematic diagram of the detection box structure in the present invention;

[0031] Figure 3 This is a schematic diagram of the sealing box cover structure of the present invention;

[0032] Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0033] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0034] Figure 6 This is a schematic diagram of the filling component structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the regulating valve in the present invention;

[0036] Figure 8 This is a schematic diagram of the pull-out box structure of the present invention;

[0037] Figure 9 It is a schematic diagram of the structure of the wastewater tank in the present invention.

[0038] The corresponding relationship between the illustration labels and component names in the figure is as follows:

[0039] 100. Detection box; 101. Lifting handle; 102. Locking lever; 103. Locking catch; 104. Inner groove; 105. Drain hole; 106. Colorimetric slot; 107. Light shielding cover; 108. Display screen; 109. Sliding slot; 110. Sliding block;

[0040] 200. Sealing box cover; 201. Lock; 202. Protective cushion; 203. Mounting slot; 204. Purified water bottle; 205. Adjusting valve; 206. Water outlet hose; 207. Air inlet branch pipe; 208. Pipe clamp; 209. Filling head; 210. Support seat; 211. Through hole; 212. Through slot; 213. Filter plate; 214. Positioning column; 215. Positioning socket; 216. Rotating valve core; 217. Torsion spring shaft; 218. Water storage tank; 219. Rotating cap; 220. Limit baffle; 221. Protruding plate; 222. Pull-out box; 223. Velcro strap; 224. Inner buckle slot; 225. Waste water tank; 226. Water inlet pipe; 227. Drain pipe; 228. Sealing pipe cap; 229. Storage box. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a single or selective embodiment that is mutually exclusive of other embodiments. The present invention provides the following embodiments.

[0044] like Figure 1 As shown, it is a structural schematic diagram of a detection and analysis device for multiple metal ions in sewage according to a preferred embodiment of the present invention. A detection and analysis device for multiple metal ions in sewage in this embodiment includes a detection box 100, and the upper end of the detection box 100 is provided with a sealed box cover 200 hinged on one side, the outer wall of the sealed box cover 200 is detachably connected to a lock head 201, the outer wall of the detection box 100 is provided with a lock buckle 103, the upper end of the detection box 100 is provided with a protrusion, and one side outer wall of the detection box 100 is fixedly connected to a lifting handle 101. In this embodiment, heavy metals in sewage are detected by the detection box 100, and the sealed box cover 200 and the detection box 100 can be buckled and locked by the lock head 201 and the lock buckle 103, and the detection equipment is convenient to carry by pulling the handle 101.

[0045] like Figure 2 As shown, it is a schematic diagram of the detection box structure in this embodiment. A display screen 108 is provided on one side of the upper end of the detection box 100, and a colorimetric slot 106 is provided on the other side. A light-shielding cover 107 is inserted into the upper end of the colorimetric slot 106. In this embodiment, the colorimetric bottle is placed into the colorimetric slot 106 and the light-shielding cover 107 is inserted into the colorimetric bottle to shield the colorimetric bottle from light, so that the sample inside the colorimetric bottle can be detected.

[0046] like Figure 2 As shown, in order to make it easier to add samples or pure water into the cuvette bottle, in this embodiment, an inner groove 104 is provided on one side of the upper end of the detection box 100, and a plurality of drainage holes 105 are provided on the inner wall of the inner groove 104 close to the outer wall of the detection box 100. The cuvette bottle can be placed inside through the concave setting of the inner groove 104, and the leaked pure water or sample can be discharged outward through the drainage holes 105 to avoid falling on the display screen 108 and other positions and causing damage to the detection box 100.

[0047] like Figure 3As shown, it is a schematic diagram of the sealed box cover structure in this embodiment. When the sealed box cover 200 is opened, the inner top is detachably connected to the regulating valve 205. The outer wall of the sealed box cover 200 above the regulating valve 205 is provided with a socket, and a pure water bottle 204 is installed on the socket. The bottom of the regulating valve 205 is detachably connected to the water outlet hose 206. The inside of the sealed box cover 200 is detachably connected to a plurality of pipe clamps 208, which fix the water outlet hose 206. The end of the water outlet hose 206 is detachably connected to a filling pipe. The filling head 209 and the inner wall of the sealed box cover 200 are detachably connected to the support base 210, and the filling head 209 is snap-fitted to the support base 210. In this embodiment, before opening the sealed box cover 200, the socket on the sealed box cover 200 is vertically downward and the pure water bottle 204 is connected to the socket. After the connection, the sealed box cover 200 is opened, and the pure water inside the pure water bottle 204 can be transported outward from the filling head 209 by opening the regulating valve 205, so that the pure water can be more conveniently added to the interior of the colorimetric bottle.

[0048] like Figure 5 As shown, it is a schematic diagram of the fixed component structure in this embodiment. Sliding grooves 109 are provided on both sides of the upper end of the detection box body 100. The sliding grooves 109 on both sides are slidably connected to the inside of the sliding grooves 109. The sliding blocks 110 are fixedly connected to the outer wall of the sealing box cover 200 near the sliding block 110. The sliding block 110 is pushed so that the locking rod 102 passes through the detection box body 100 and is plugged into the sealing box cover 200. In this embodiment, the locking rod 102 is inserted into the sealing box cover 200, thereby increasing the supporting force of the sealing box cover 200, avoiding the sealing box cover 200 from closing during the detection process or due to the weight of the pure water bottle 204, and can fix and maintain the posture of the sealing box cover 200 after opening.

[0049] It is worth noting that the above-mentioned sliding groove 109, sliding block 110 and locking rod 102 are fixed components in this embodiment, and the fixed components include but are not limited to the sliding groove 109, sliding block 110 and locking rod 102. As long as it is a component that can fix the sealed box cover 200, it can be applied to this embodiment.

[0050] like Figure 6 As shown, it is a schematic diagram of the positioning component structure in this embodiment. Positioning columns 214 are fixedly connected to both sides of the bottom of the filling head 209, and positioning holes 215 are provided on both sides of the upper end of the support seat 210. The positioning columns 214 are inserted into the interior of the positioning holes 215. In this embodiment, the filling head 209 can be positioned and fixed by inserting the positioning columns 214 into the interior of the positioning holes 215 to prevent the filling head 209 from falling off from the inside of the support seat 210.

[0051] It is worth noting that the above-mentioned positioning column 214 and positioning socket 215 are schematic diagrams of the positioning component structure in this embodiment. The positioning component includes but is not limited to the positioning column 214 and positioning socket 215. Any component that can position and fix the filling head 209 can be applied to this embodiment.

[0052] like Figure 7 As shown, it is a schematic diagram of the regulating valve structure in this embodiment. The regulating valve 205 is internally rotatably connected to a rotary valve core 216. One end of the rotary valve core 216 is rotatably connected to a torsion spring shaft 217. The torsion spring shaft 217 is connected to the interior of the regulating valve 205. The outer wall of the rotary valve core 216 is provided with a water storage tank 218. The torsion spring shaft 217 makes the water storage tank 218 face upward under normal conditions. The other end of the rotary valve core 216 is fixedly connected to a rotating shaft. The rotating shaft passes through the regulating valve 205 and is fixedly connected to a rotating cap 219. The outer wall of the rotating cap 219 is fixedly connected to a protruding plate 221. The regulating valve 205 is located above and below the rotating cap 219. The outer wall is fixedly connected to a limiting baffle 220. In this embodiment, under normal conditions, the water tank 218 faces upward, allowing the pure water inside the pure water bottle 204 to enter the water tank 218. By rotating the rotating cap 219, the limiting baffle 220 contacts the outer wall of the protruding plate 221 below. At this time, the opening of the water tank 218 can be facing downward, and the pure water inside the water tank 218 can enter the water outlet hose 206, and finally added to the colorimetric bottle through the filling head 209. The torsion spring shaft 217 is set so that it can be automatically reset after being released after the rotary valve core 216 is rotated, so that the water added to the colorimetric bottle each time is quantitative.

[0053] It is worth noting that the internal volume of the water storage tank 218 can be set to different capacities such as 10 ml, 5 ml or 1 ml, and can be set according to actual needs.

[0054] It is also worth noting that the above-mentioned rotating valve core 216, torsion spring shaft 217, water storage tank 218, rotating cap 219, limit baffle 220 and protruding plate 221 are the quantitative components in this embodiment. The quantitative components include but are not limited to the rotating valve core 216, torsion spring shaft 217, water storage tank 218, rotating cap 219, limit baffle 220 and protruding plate 221. As long as it is a component that can transport a certain amount of pure water to the inside of the water outlet hose 206, it can be used in this embodiment.

[0055] like Figure 3As shown, in order to enable pure water to be transported from the inside of the water outlet hose 206 and flow out from the filling head 209, in this embodiment, the outer wall of the water outlet hose 206 is fixedly connected to the air intake branch pipe 207, and the outer wall of the sealing box cover 200 is provided with a through hole 211, and the end of the air intake branch pipe 207 is connected and communicated with the through hole 211. In this embodiment, external air enters the inside of the water outlet hose 206 through the air intake branch pipe 207, so that pure water can flow out from the filling head 209.

[0056] like Figure 4 As shown, in order to prevent impurities such as dust in the external air from entering the water outlet hose 206 and contaminating the pure water, in this embodiment, a filter plate 213 is inserted into the contact surface between the sealed box cover 200 and the detection box body 100. The filter plate 213 covers the inside of the through hole 211, and a through groove 212 is provided on the outer wall of the sealed box cover 200 located on the filter plate 213. In this embodiment, the air entering from the outside can be filtered through the filter plate 213 to prevent external impurities from contaminating the pure water, and the filter plate 213 can be more conveniently disassembled and installed through the provided through groove 212.

[0057] It is worth noting that the above-mentioned filter plate 213 and filter plate 213 are the filter components in this embodiment. The filter components include but are not limited to the filter plate 213 and filter plate 213. As long as it is a component that can filter the air entering the water outlet hose 206, it can be applied to this embodiment.

[0058] like Figure 3 As shown in FIG8 , it is a schematic diagram of the pull-out box structure in this embodiment. The sealed box cover 200 is located near the inner wall of the display screen 108 after closing, and is fixedly connected to a storage box 229. A protective cushion 202 is provided on the outside of the storage box 229. A mounting groove 203 is provided on one side of the storage box 229. The inside of the mounting groove 203 is slidably connected to a pull-out box 222. The front of the pull-out box 222 is provided with an opening. A plurality of Velcro straps 223 are provided on the inner wall of the pull-out box 222. An inner buckle groove 224 is provided on one side of the outer wall of the pull-out box 222. The side wall of the pull-out box 222 is snap-fitted with the inside of the mounting groove 203 when closed. In this embodiment, the display screen 108 can be protected after the sealed box cover 200 is closed by the protective cushion 202, and the items needed for the test can be fixed by the Velcro strap 223. The inner buckle groove 224 facilitates the pull-out box 222 to be pulled out.

[0059] like Figure 9As shown, it is a schematic diagram of the wastewater tank structure in this embodiment. The interior of the sealed box cover 200 is detachably connected to the wastewater tank 225, and the upper end of the wastewater tank 225 is fixedly connected to a water inlet pipe 226 that passes through the outer wall of the sealed box cover 200, and the bottom of the wastewater tank 225 is fixedly connected to a drain pipe 227 that passes through the bottom of the sealed box cover 200. The outer walls of the water inlet pipe 226 and the drain pipe 227 are threadedly connected with a blocking pipe cap 228. In this embodiment, by unscrewing the blocking pipe cap 228 on the water inlet pipe 226, the wastewater generated in the test can be poured into the interior of the wastewater tank 225 for storage, and by unscrewing the blocking pipe cap 228 on the drain pipe 227, the sewage inside the wastewater tank 225 can be discharged outward, which can avoid polluting the environment and can better store and collect the wastewater generated by the test, which is more convenient.

[0060] In summary, the specific use of this embodiment is as follows:

[0061] When the water is tested, the jack is first turned vertically downward and the pure water bottle 204 is connected to the jack. After the connection is completed, the sealed box cover 200 is opened, and then the sliding block 110 in the fixed assembly is pushed to make the locking rod 102 pass through the detection box body 100 and plug into the sealed box cover 200. In this embodiment, the locking rod 102 is inserted into the sealed box cover 200, thereby increasing the supporting force of the sealed box cover 200, so as to avoid the sealed box cover 200 being closed during the detection process or due to the weight of the pure water bottle 204, and the posture of the sealed box cover 200 after opening can be fixed. Then, the pull-out box 222 is pulled outward through the inner buckle groove 224, the required tools are taken out and placed inside the inner groove 104, and the rotating cap 219 in the quantitative assembly is rotated to make the limit baffle 220 contact the outer wall of the lower protruding plate 221, at this time, the opening of the water storage tank 218 can be turned downward, so that the water storage tank 2 The pure water inside 18 enters the inside of the water outlet hose 206, and is finally added to the inside of the cuvette bottle through the filling head 209. The setting of the torsion spring shaft 217 can automatically reset after the rotary valve core 216 is loosened, so that the water added to the inside of the cuvette bottle is quantitative each time. The filter plate 213 in the filter assembly can filter the air entering from the outside to prevent external impurities from contaminating the pure water, and the filter plate 213 can be more conveniently removed and installed through the through groove 212. The cuvette storing the pure water is then placed into the colorimetric slot 106 and the light-shielding cover 107 is installed to calibrate the detection box 100. After calibration, the sealing cap 228 on the water inlet pipe 226 is unscrewed and the pure water is poured into the inside of the water inlet pipe 226. After pre-treatment of the sample, it is placed in the cuvette bottle, and then the cuvette bottle is placed in the colorimetric slot 106 and the light-shielding cover 107 is installed for detection and analysis.

[0062] This embodiment also discloses a method for detecting multiple metal ions, which comprises the following steps:

[0063] Step 1: Filter and dilute the sample to be tested to eliminate interfering substances;

[0064] Step 2: Put pure water into a colorimetric bottle, and then put the colorimetric bottle into the detection box 100 to calibrate the detection box 100;

[0065] Step 3: Place the sample in a colorimetric bottle and then into the detection box 100 , select an appropriate wavelength for measurement, and determine the content of the heavy metal atoms in the sample by measuring the degree of absorption of specific light.

[0066] The above content is a further detailed description of the present invention in conjunction with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A detection and analysis device for multiple metal ions in sewage, comprising a detection box (100), a sealed box cover (200) hingedly connected to one side of the upper end of the detection box (100), an outer wall of the sealed box cover (200) detachably connected to a lock (201), a lock buckle (103) provided on the outer wall of the detection box (100), a protrusion provided on the upper end of the detection box (100), a lifting handle (101) fixedly connected to one side of the outer wall of the detection box (100), a display screen (108) provided on one side of the upper end of the detection box (100), a colorimetric slot (106) provided on the other side, a light shielding cover (107) plugged into the upper end of the colorimetric slot (106), characterized in that: The top of the inner side of the sealed box cover (200) when it is opened is detachably connected to a regulating valve (205), the outer wall of the sealed box cover (200) above the regulating valve (205) is provided with a socket, a purified water bottle (204) is installed on the socket, the bottom of the regulating valve (205) is detachably connected to a water outlet hose (206), the interior of the sealed box cover (200) is detachably connected to a plurality of pipe clamps (208), the pipe clamps (208) fix the water outlet hose (206), and the end of the water outlet hose (206) is detachably connected to the outer wall of the sealed box cover (200). A filling head (209) is connected, and the inner wall of the sealed box cover (200) is detachably connected to a support seat (210). The filling head (209) is clamped with the support seat (210). A quantitative component is installed inside the regulating valve (205). The quantitative component can release a quantitative amount of pure water each time. A fixing component is installed on both sides of the upper end of the detection box body (100) near the sealed box cover (200). The fixing component fixes the sealed box cover (200) after it is opened. The support seat (210) and the filling head (209) are installed. There is a positioning component, which can fix the filling head (209) on the upper end of the support seat (210), and the quantitative component includes a rotating valve core (216), a torsion spring shaft (217), a water storage tank (218), a rotating cap (219), a limit baffle (220) and a protruding plate (221). The internal rotation of the regulating valve (205) is connected to the rotating valve core (216), and one end of the rotating valve core (216) is connected to the torsion spring shaft (217). The torsion spring shaft (217) is connected to the internal rotation of the regulating valve (205). The outer wall of the rotary valve core (216) is provided with a water storage tank (218), and the torsion spring shaft (217) makes the water storage tank (218) face upward in the normal state. The other end of the rotary valve core (216) is fixedly connected to a rotating shaft, which passes through the regulating valve (205) and is fixedly connected to a rotating cap (219). The outer wall of the rotating cap (219) is fixedly connected to a protruding plate (221). The regulating valve (205) is located above and below the outer wall of the rotating cap (219) and is fixedly connected to a limit baffle (220).

2. The detection and analysis device for multiple metal ions in sewage according to claim 1, characterized in that: An inner groove (104) is provided on one side of the upper end of the detection box (100), and a plurality of drainage holes (105) are provided on the inner wall of the inner groove (104) close to the outer wall of the detection box (100).

3. The detection and analysis device for multiple metal ions in sewage according to claim 2, characterized in that: The outer wall of the water outlet hose (206) is fixedly connected to an air intake branch pipe (207), the outer wall of the sealing box cover (200) is provided with a through hole (211), the end of the air intake branch pipe (207) is connected to and communicates with the through hole (211), and a filter assembly is installed on the sealing box cover (200), and the filter assembly can filter the air entering the interior of the water outlet hose (206).

4. The device for detecting and analyzing multiple metal ions in sewage according to claim 3, characterized in that: The sealed box cover (200) is located near the inner wall of the display screen (108) after closing, and is fixedly connected to a storage box (229). A protective cushion (202) is provided on the outside of the storage box (229). A mounting groove (203) is provided on one side of the storage box (229). The interior of the mounting groove (203) is slidably connected to a pull-out box (222). The front of the pull-out box (222) is provided with an opening. The inner wall of the pull-out box (222) is provided with a plurality of Velcro straps (223). An inner buckle groove (224) is provided on the outer wall of one side of the pull-out box (222). The side wall of the pull-out box (222) is snap-fitted with the interior of the mounting groove (203) when closed.

5. The device for detecting and analyzing multiple metal ions in sewage according to claim 4, characterized in that: The interior of the sealed box cover (200) is detachably connected to a wastewater tank (225), the upper end of the wastewater tank (225) is fixedly connected to a water inlet pipe (226) passing through the outer wall of the sealed box cover (200), the bottom of the wastewater tank (225) is fixedly connected to a drain pipe (227) passing through the bottom of the sealed box cover (200), and the outer walls of the water inlet pipe (226) and the drain pipe (227) are threadedly connected to a blocking pipe cap (228).

6. The device for detecting and analyzing multiple metal ions in sewage according to claim 5, characterized in that: The positioning assembly includes a positioning column (214) and a positioning socket (215). The positioning columns (214) are fixedly connected to both sides of the bottom of the filling head (209). The positioning sockets (215) are provided on both sides of the upper end of the support seat (210). The positioning columns (214) are inserted into the interior of the positioning sockets (215).

7. The device for detecting and analyzing multiple metal ions in sewage according to claim 6, characterized in that: The fixing assembly includes a sliding groove (109), a sliding block (110) and a locking rod (102). The sliding grooves (109) are provided on both sides of the upper end of the detection box body (100). The sliding blocks (110) are slidably connected inside the sliding grooves (109) on both sides. The sliding blocks (110) are fixedly connected to the locking rod (102) near the outer wall of the sealing box cover (200). When the sliding block (110) is pushed, the locking rod (102) passes through the detection box body (100) and is plugged into the sealing box cover (200).

8. The device for detecting and analyzing multiple metal ions in sewage according to claim 7, characterized in that: The filter assembly includes a filter plate (213), the filter plate (213) is plugged into the contact surface between the sealing box cover (200) and the detection box body (100), the filter plate (213) covers the inside of the through hole (211), and a through groove (212) is provided on the outer wall of the sealing box cover (200) located on the filter plate (213).

9. A method for detecting multiple metal ions in sewage, characterized in that: The device for detecting and analyzing multiple metal ions in sewage according to any one of claims 1 to 8 is provided, and the detection method comprises the following steps: Step 1: Filter and dilute the sample to be tested to eliminate interfering substances; Step 2: Put pure water into the colorimetric bottle, and put the colorimetric bottle into the detection box (100) to calibrate the detection box (100); Step 3: Place the sample in a colorimetric bottle and then into the detection box (100), select an appropriate wavelength for measurement, and determine the content of the heavy metal atoms in the sample by measuring the degree of absorption of specific light.

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