An online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer

Abstract

The present invention discloses an online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer, which relates to the field of ion concentration analysis and includes a support device, an opening and closing door, a variable sampling device, a liquid dropping device and a comparison device. The liquid dropping device drives the suspension ball to rise through the change of the liquid level. The suspension ball drives the first screw rod to lift upward through the limit bracket. The first screw rod drives the flexible elbow to bend and fold through the control bracket, thereby restricting the flow rate at the flexible elbow. During the folding process of the flexible elbow, the acute angle formed by the rigid straight pipe and the horizontal plane will further become smaller to restrict the flow rate at the rigid straight pipe. The electric push rod on the side of the electric clamping plate drives the electric clamping plate to move horizontally, so that the electric clamping plate is inserted into the liquid dropping card slot, thereby realizing the locking function of the control bracket. At the same time, a pressure sensor is arranged at the upper end of the first screw rod. When the upper end of the first screw rod contacts the lower end of the control bracket, the pressure sensor sends out a signal to realize the control of the liquid dropping time.

Description

Technical Field

[0001] The present invention relates to the field of ion concentration analysis, and particularly to an on-line fully automatic calcium, magnesium, strontium and barium ion concentration analyzer. Background Art

[0002] In the current production field and process of caustic soda industry, if the concentration of calcium, magnesium, strontium and barium ions is too high, it will cause the production process to stop, resulting in heavy losses. Therefore, in the electrolysis process, the real-time monitoring of calcium, magnesium, strontium and barium ions in refined brine has become one of the key technologies to ensure the smooth progress of the process.

[0003] The current mainstream detection scheme in the industry is usually as follows: using HNB color reagent combined with EDTA complexometric titration method, and then after mechanical stirring or manual stirring, using a colorimetric analyzer to determine the end point and deduce the ion concentration value. However, this technical system still has the following problems: (1) The detection process is easily affected by multiple interferences such as fluctuations in environmental temperature and humidity, differences in reagent batches, and visual reading errors of operators, making it impossible to further improve the accuracy; (2) It is impossible to accurately control the dropping amount and dropping time of the color reagent, resulting in inaccurate color development results; (3) When there is a deviation in the colorimeter due to problems with the lens or light source, the existing scheme cannot be quickly replaced. Therefore, an on-line fully automatic calcium, magnesium, strontium and barium ion concentration analyzer that can accurately control the color reagent and facilitate the quick replacement of the colorimeter when the result is abnormal is needed to solve the deficiencies of the existing calcium, magnesium, strontium and barium ion concentration analyzers.

[0004] For example, the patent with the publication number CN116008197B provides an on-line analysis instrument and analysis method for nickel and cobalt ion concentrations. The device includes a sampling mechanism, a measuring mechanism and a control main body. The sampling mechanism is used to extract the sample solution to be measured and transport it to the sample chamber. The measuring mechanism measures the total content of nickel and cobalt ions in the initial sample solution based on the EDTA complexometric titration method. This application alleviates the technical problem that the existing on-line detection technology and instrument cannot simultaneously measure the nickel and cobalt ion concentrations in the nickel and cobalt solvent extraction process. This scheme cannot accurately control the dropping amount and dropping time of the color reagent; this scheme cannot change the sampling flow rate and flow volume when sampling the liquid, so it cannot accurately control the volume of the sampled sample; this scheme cannot dynamically adjust the dropping speed of the color reagent, let alone reduce the dropping rate of the color reagent when the reaction reaches the critical value; it cannot quickly replace standard solutions of different concentrations, so it cannot calibrate the instrument. Summary of the Invention

[0005] The object of the present invention is to provide an online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer, aiming to solve the technical problems existing in the prior art, such as how to accurately control the dropping amount and dropping time of the chromogenic reagent, how to change the flow rate and flow volume during the sampling process so as to accurately control the volume of the sampled sample, how to dynamically adjust the dropping speed of the chromogenic reagent, and how to quickly replace standard solutions with different concentrations.

[0006] In view of the above technical problems, the technical solution adopted by the present invention is as follows: an online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer, comprising a support device, an opening and closing door, a variable sampling device, a dropping device and a comparison device; a double-output electric push rod, an annular bracket, an output component and a limiting disc are arranged on the variable sampling device; two annular brackets are respectively fixedly installed at the front output end and the rear output end of the double-output electric push rod; two limiting discs are respectively fixedly connected with the two annular brackets; an output sub-leaf, an output main leaf, a liquid adding swing head, a reversing rotating shaft, a reversing roller and a reversing turntable are arranged on the output component; the reversing turntable is fixedly installed at one end of the reversing rotating shaft; the output sub-leaf is hinged to the side surface of the output main leaf; the output sub-leaf is also slidably installed along the circumferential direction on the end surface of the limiting disc; the liquid adding swing head is fixedly installed at one end of the reversing rotating shaft of the reversing rotating shaft; the reversing roller is fixedly installed at one end of the output main leaf; the outer cylindrical surface of the reversing roller is also in frictional contact with the end surface of the reversing turntable; the double-output electric push rod drives the annular bracket to slide inwards, and the two annular brackets drive the two limiting discs to slide inwards. At this time, the torque applied by the liquid adding swing head to the reversing rotating shaft will assist the reversing rotating shaft to rotate. The reversing rotating shaft drives the reversing roller and the output main leaf to rotate through the reversing turntable, and the output main leaf drives the two limiting discs to slide inwards through the output sub-leaf, so as to realize the transformation of the internal volume of the variable sampling device; the opening and closing door is hinged to the front end of the support device; the dropping device is fixedly installed on the right side of the variable sampling device; the dropping device is also fixedly installed inside the support device; the comparison device is fixedly installed on the right side of the dropping device.

[0007] Furthermore, the variable sampling device further includes a variable sampling housing, a variable sampling plunger, a variable sampling connecting rod, a pressure rod, a second gear, a liquid inlet pipe, and a liquid outlet; the double-output electric push rod is fixedly installed on the left side of the variable sampling housing along the axial direction of the variable sampling housing; the variable sampling housing is fixedly installed inside the support device; the variable sampling plunger is slidably installed at the upper end of the variable sampling housing in the vertical direction; both ends of the variable sampling connecting rod are respectively hinged to the side surface of the variable sampling plunger and the upper end of the annular bracket; two annular brackets are respectively slidably installed at the front end and the rear end of the variable sampling housing along the axial direction of the variable sampling housing; the pressure rod is fixedly installed at the front end of the annular bracket; the pressure rod is also slidably installed inside the output assembly; two limit discs are slidably installed inside the variable sampling housing along the axial direction of the variable sampling housing; the output assembly is rotatably connected inside the variable sampling housing along the axial direction of the variable sampling housing; the second gear is fixedly installed on the outer cylindrical surface of the output assembly; the upper end of the liquid inlet pipe is fixedly installed at the lower end of the variable sampling housing; the lower end of the liquid inlet pipe is fixedly installed inside the support device; the liquid outlet is fixedly installed on the right side of the variable sampling housing; the liquid outlet is also fixedly installed on the left side of the liquid dripping device.

[0008] Furthermore, the output assembly further includes a liquid changing joint, an output rotating housing, a liquid adding pipe, and a retaining piece; the liquid changing joint is rotatably connected to one end of the reversing rotating shaft along the axial direction of the reversing rotating shaft; the cavity in the liquid changing joint communicates with the cavity in the reversing rotating shaft; the cavity in the reversing rotating shaft communicates with the cavity in the liquid adding swing head; the output rotating housing is rotatably connected inside the variable sampling housing along the axial direction of the variable sampling housing; the reversing rotating shaft is rotatably connected inside the output rotating housing along the axial direction of the output rotating housing; the output main blade is rotatably connected to the side surface of the output rotating housing in the radial direction of the output rotating housing; the upper end of the liquid adding pipe is fixedly installed outside the liquid changing joint; the lower end of the liquid adding pipe is fixedly connected to the side surface of the liquid inlet pipe; the retaining piece is fixedly installed on the end surface of the reversing turntable.

[0009] Furthermore, the output secondary blade includes a secondary blade main body and a secondary blade slider; the secondary blade main body is rotatably connected to the side surface of the output main blade; the secondary blade slider is fixedly installed on the side surface of the secondary blade main body; the secondary blade slider is also slidably installed inside the end surface of the limit disc along the circumferential direction.

[0010] Furthermore, the liquid dropping device includes a liquid dropping support, a liquid dropping box, a liquid dropping spring, a first slider, an electric clamping plate, a liquid dropping card slot, a second slider, an observation box, a conversion pull rod, a reaction assembly, a flexible elbow joint, a rigid straight pipe, a control support, a first screw, a first nut, a control belt, a control dropper, a second nut, and a second screw; the liquid dropping support is fixedly installed inside the support device; two liquid dropping boxes are fixedly installed at the upper end of the liquid dropping support; a water pump is arranged inside the liquid dropping box; both ends of the liquid dropping spring are respectively fixedly installed inside the liquid dropping support and at the upper end of the first slider; the first slider is slidably installed inside the liquid dropping support in the vertical direction; an electric push rod is arranged on the side of the electric clamping plate; the electric push rod on the electric clamping plate is fixedly installed on the right side of the control support in the horizontal direction; the liquid dropping card slots are distributed in the vertical direction on the right side of the liquid dropping support; the second slider is slidably installed inside the liquid dropping support in the vertical direction; the observation box is fixedly installed on the right side of the reaction assembly; the conversion pull rod is slidably installed inside the observation box in the horizontal direction; the reaction assembly is fixedly installed at the lower end of the liquid dropping support; the reaction assembly is also fixedly installed at the right end of the liquid outlet; the two rigid straight pipes are fixedly connected through the flexible elbow joint; there is an included angle between the rigid straight pipe and the horizontal plane; the sides of the two rigid straight pipes are respectively rotatably connected to the first slider and the second slider; the upper end of the rigid straight pipe is fixedly connected to the liquid dropping box; the lower end of the rigid straight pipe is fixedly connected to the control dropper; the control dropper is slidably installed at the upper end of the reaction assembly in the vertical direction; the control dropper is also fixedly connected to the control support; the control support is slidably installed inside the liquid dropping support in the vertical direction; the first screw is slidably installed inside the reaction assembly in the vertical direction; a pressure sensor is also arranged at the upper end of the first screw; the first nut is rotatably connected to the upper end of the reaction assembly; the internal thread of the first nut and the external thread of the first screw form a thread pair; both ends of the control belt are respectively slidably installed on the outer cylindrical surface of the first nut and the outer cylindrical surface of the second nut; the second nut is rotatably connected to the upper end of the reaction assembly; the external thread on the second screw and the internal thread of the second nut form a thread pair.

[0011] Furthermore, the reaction assembly includes a suspension ball, a partition plate, a limit support, and a reaction channel; the suspension ball is fixedly installed on the periphery of the limit support; the limit support is fixedly installed at the lower end of the first screw; the partition plate is used to partition the internal space of the reaction assembly; the axis of the reaction channel is arranged horizontally on the partition plate.

[0012] Furthermore, an external thread is arranged on the outer cylindrical surface of the reaction channel; the external thread on the reaction channel is used to form a thread pair with the internal thread on the partition plate; a spiral blade is arranged on the inner cylindrical surface of the reaction channel.

[0013] Furthermore, the support device includes a support housing, a support hanging ring, a control panel, an adjustment storage cylinder, an indication storage cylinder, a small sample liquid cylinder, a motor, and a first gear; the support housing is fixedly installed on the periphery of the variable sampling housing and the dropping liquid bracket; an operation chamber is further provided at the rear end of the support housing; the operation chamber is used to facilitate the staff to control the position of the electric clamping plate; the support hanging ring is fixedly installed at the upper end of the support housing; the control panel is fixedly installed at the front end of the support housing; the adjustment storage cylinder is fixedly installed at the lower end of the support housing; the adjustment storage cylinder is also communicated with the water pump of the dropping liquid tank; the adjustment agent is stored in the adjustment storage cylinder; the indication storage cylinder is fixedly installed at the lower end of the support housing; the indication storage cylinder is also communicated with the water pump of the dropping liquid tank; the indicator is stored in the indication storage cylinder; the small sample liquid cylinder is fixedly installed at the lower end of the support housing; the small sample liquid cylinder is fixedly connected to the lower end of the liquid inlet pipe; the motor is fixedly installed on the side of the support housing; the first gear is fixedly installed at the output end of the motor; the first gear also forms a gear pair with the second gear.

[0014] Furthermore, the comparison device includes a comparison bracket, a ray emitter, a clamping disc, a first standard cylinder, a second standard cylinder, and a comparison base; the comparison bracket is slidably installed vertically on the upper end of the comparison base; the ray emitter is fixedly installed vertically inside the comparison bracket; the clamping disc is fixedly installed at the lower end of the comparison bracket; the first standard cylinder is slidably installed vertically inside the comparison base; a standard liquid is stored inside the first standard cylinder; the second standard cylinder is slidably installed vertically inside the comparison base; a water pump is provided on the side of the second standard cylinder; the water pump on the side of the second standard cylinder is communicated with the internal space of the observation box; the comparison base is fixedly installed on the upper end of the observation box; an absorbance detector is also provided on the upper surface of the comparison base.

[0015] Furthermore, an observation window and a door handle are provided on the opening and closing door; the observation window is used to observe the data of the control panel; the door handle is used to facilitate the opening and closing of the opening and closing door.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: (1) In the dropping device, the floating ball rises driven by the change of the liquid level. The floating ball drives the first screw rod to lift upward through the limiting bracket, and the first screw rod drives the flexible elbow to bend and fold through the control bracket, thereby restricting the flow rate at the flexible elbow. During the folding process of the flexible elbow, the acute angle between the rigid straight pipe and the horizontal plane will further decrease to restrict the flow rate at the rigid straight pipe. (2) The electric push rod on the side of the electric clamping plate drives the electric clamping plate to move horizontally, so that the electric clamping plate is inserted into the dropping card slot, thereby realizing the locking function of the control bracket. At the same time, a pressure sensor is arranged at the upper end of the first screw rod. When the upper end of the first screw rod contacts the lower end of the control bracket, the pressure sensor emits a signal to control the dropping time. (3) After the sample liquid flows into the small sample liquid cylinder by inertia, the sample liquid will flow into the inside of the variable sampling housing along the liquid inlet pipe and at the same time also flow into the liquid adding swing head of the output component through the liquid adding pipe, so that the liquid adding swing head applies a certain torque to the reversing rotating shaft. Subsequently, the double-output electric push rod drives the annular bracket to slide inward, and the two annular brackets drive the two limiting disks to slide inward. At this time, the torque applied by the liquid adding swing head to the reversing rotating shaft will assist the reversing rotating shaft to rotate. The reversing rotating shaft drives the reversing roller and the output main blade to rotate through the reversing turntable, and the output main blade drives the two limiting disks to slide inward through the output auxiliary blade, thereby realizing the change of the internal volume of the variable sampling housing. (4) When the liquid level drives the limiting bracket and the first screw rod to rise to the limit position through the floating ball, the control bracket will also drive the electric clamping plate to rise to the limit position. At this time, the upper end of the electric clamping plate will push the comparison bracket upward by a small distance, so that the clamping disk is separated from the first standard cylinder, facilitating the replacement of the first standard cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall assembly structure of the working state of an embodiment of the present invention Figure 1 。

[0018] Figure 2 is a schematic diagram of the overall assembly structure of the working state of an embodiment of the present invention Figure 2 。

[0019] Figure 3 is a schematic diagram of the structure of the support device of the present invention.

[0020] Figure 4 is a schematic diagram of the assembly structure of the support device and the opening and closing door of the present invention.

[0021] Figure 5 is a schematic diagram of the structure of the variable sampling device of the present invention Figure 1 。

[0022] Figure 6 is a schematic diagram of the structure of the variable sampling device of the present invention Figure 2 。

[0023] Figure 7 Schematic structure of the output component of the present invention Figure 1 .

[0024] Figure 8 Schematic structure of the output component of the present invention Figure 2 .

[0025] Figure 9 Schematic diagram of the part structure of the output secondary blade of the present invention.

[0026] Figure 10 Schematic structure of the dropping device of the present invention Figure 1 .

[0027] Figure 11 Schematic structure of the dropping device of the present invention Figure 2 .

[0028] Figure 12 Schematic diagram of the structure of the reaction component of the present invention.

[0029] Figure 13 Schematic diagram of the part structure of the reaction channel of the present invention.

[0030] Figure 14 Schematic diagram of the structure of the comparison device of the present invention.

[0031] In the figure: 1 - support device; 2 - opening and closing door; 3 - variable sampling device; 4 - dropping device; 5 - comparison device; 101 - support housing; 102 - support hanging ring; 103 - control panel; 104 - adjustment storage cylinder; 105 - indication storage cylinder; 106 - small sample liquid cylinder; 107 - motor; 108 - first gear; 201 - observation window; 202 - door handle; 301 - double-output electric push rod; 302 - variable sampling housing; 303 - variable sampling plunger; 304 - variable sampling connecting rod; 305 - annular bracket; 306 - pressure rod; 307 - output assembly; 308 - second gear; 309 - liquid inlet pipe; 310 - limit disc; 311 - liquid outlet; 312 - liquid change joint; 313 - output rotating shell; 314 - output secondary blade; 315 - output main blade; 316 - liquid adding swing head; 317 - liquid adding pipe; 318 - reversing rotating shaft; 319 - reversing roller; 320 - retaining piece; 321 - reversing turntable; 322 - secondary blade main body; 323 - secondary blade slider; 401 - dropping bracket; 402 - dropping box; 403 - dropping spring; 404 - first slider; 405 - electric clamping plate; 406 - dropping card slot; 407 - second slider; 408 - observation box; 409 - conversion pull rod; 410 - reaction assembly; 411 - flexible elbow joint; 412 - rigid straight pipe; 413 - control bracket; 414 - first screw; 415 - first nut; 416 - control belt; 417 - control dropper; 418 - second nut; 419 - second screw; 420 - floating ball; 421 - partition plate; 422 - limit bracket; 423 - reaction channel; 424 - spiral blade; 501 - comparison bracket; 502 - ray emitter; 503 - clamping disc; 504 - first standard cylinder; 505 - second standard cylinder; 506 - comparison base. Detailed implementation manners

[0032] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation manners.

[0033] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation to the present invention; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0034] Figures 1 to 14 This is a preferred embodiment of the present invention.

[0035] Such as Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, a double-output electric push rod 301, an annular bracket 305, an output assembly 307, and a limit disc 310 are provided on the variable sampling device 3; the two annular brackets 305 are respectively fixedly installed at the front output end and the rear output end of the double-output electric push rod 301; the two limit discs 310 are respectively fixedly connected to the two annular brackets 305; an output sub-leaf 314, an output main leaf 315, a liquid adding swing head 316, a commutation rotating shaft 318, a commutation roller 319, and a commutation turntable 321 are provided on the output assembly 307; the commutation turntable 321 is fixedly installed at one end of the commutation rotating shaft 318; the output sub-leaf 314 is hinged to the side of the output main leaf 315; the output sub-leaf 314 is also slidably installed along the circumferential direction on the end face of the limit disc 310; the liquid adding swing head 316 is fixedly installed at one end of the commutation rotating shaft 318 of the commutation rotating shaft 318; the commutation roller 319 is fixedly installed at one end of the output main leaf 315; the outer cylindrical surface of the commutation roller 319 is also in frictional contact with the end face of the commutation turntable 321; the double-output electric push rod 301 drives the annular bracket 305 to slide inward, and the two annular brackets 305 drive the two limit discs 310 to slide inward. At this time, the torque applied by the liquid adding swing head 316 to the commutation rotating shaft 318 will assist the commutation rotating shaft 318 to rotate. The commutation rotating shaft 318 drives the commutation roller 319 and the output main leaf 315 to rotate through the commutation turntable 321, and the output main leaf 315 drives the two limit discs 310 to slide inward through the output sub-leaf 314, so as to realize the transformation of the internal volume of the variable sampling device 3; the opening and closing door 2 is hinged to the front end of the support device 1; the liquid dropping device 4 is fixedly installed on the right side of the variable sampling device 3; the liquid dropping device 4 is also fixedly installed inside the support device 1; the comparison device 5 is fixedly installed on the right side of the liquid dropping device 4.

[0036] As Figure 3 and Figure 4As shown, in the support device 1, the support housing 101 is fixedly installed around the variable sampling housing 302 and the drip support 401; an operation chamber is further provided at the rear end of the support housing 101; the operation chamber is used to facilitate the staff to control the position of the electric clamping plate 405; the support lifting ring 102 is fixedly installed at the upper end of the support housing 101; the control panel 103 is fixedly installed at the front end of the support housing 101; the adjustment storage cylinder 104 is fixedly installed at the lower end of the support housing 101; the adjustment storage cylinder 104 is also connected to the water pump of the drip tank 402; the adjustment agent is stored in the adjustment storage cylinder 104; the indication storage cylinder 105 is fixedly installed at the lower end of the support housing 101; the indication storage cylinder 105 is also connected to the water pump of the drip tank 402; the indicator is stored in the indication storage cylinder 105; the small sample liquid cylinder 106 is fixedly installed at the lower end of the support housing 101; the small sample liquid cylinder 106 is fixedly connected to the lower end of the liquid inlet pipe 309; the motor 107 is fixedly installed on the side of the support housing 101; the first gear 108 is fixedly installed at the output end of the motor 107; the first gear 108 also forms a gear pair with the second gear 308; the opening and closing door 2 is provided with an observation window 201 and a door handle 202; the observation window 201 is used to observe the data of the control panel 103; the door handle 202 is used to facilitate the opening and closing of the opening and closing door 2.

[0037] As Figure 5 and Figure 6 shown, in the variable sampling device 3, the double-output electric push rod 301 is fixedly installed along the axial direction of the variable sampling housing 302 on the left side of the variable sampling housing 302; the variable sampling housing 302 is fixedly installed inside the support device 1; the variable sampling plunger 303 is slidably installed vertically at the upper end of the variable sampling housing 302; both ends of the variable sampling connecting rod 304 are respectively hinged to the side of the variable sampling plunger 303 and the upper end of the annular bracket 305; the two annular brackets 305 are respectively slidably installed at the front end and the rear end of the variable sampling housing 302 along the axial direction of the variable sampling housing 302; the pressure rod 306 is fixedly installed at the front end of the annular bracket 305; the pressure rod 306 is also slidably installed inside the output assembly 307; the two limit disks 310 are slidably installed inside the variable sampling housing 302 along the axial direction of the variable sampling housing 302; the output assembly 307 is rotationally connected inside the variable sampling housing 302 along the axial direction of the variable sampling housing 302; the second gear 308 is fixedly installed on the outer cylindrical surface of the output assembly 307; the upper end of the liquid inlet pipe 309 is fixedly installed at the lower end of the variable sampling housing 302; the lower end of the liquid inlet pipe 309 is fixedly installed inside the support device 1; the liquid outlet 311 is fixedly installed on the right side of the variable sampling housing 302; the liquid outlet 311 is also fixedly installed on the left side of the drip device 4.

[0038] As Figure 7 and Figure 8As shown, in the output component 307, the liquid changing joint 312 is rotatably connected to one end of the reversing rotating shaft 318 along the axial direction of the reversing rotating shaft 318; the cavity in the liquid changing joint 312 communicates with the cavity in the reversing rotating shaft 318; the cavity in the reversing rotating shaft 318 communicates with the cavity in the liquid adding swing head 316; the output rotating shell 313 is rotatably connected to the inside of the variable collection shell 302 along the axial direction of the variable collection shell 302; the reversing rotating shaft 318 is rotatably connected to the inside of the output rotating shell 313 along the axial direction of the output rotating shell 313; the output main blade 315 is rotatably connected to the side of the output rotating shell 313 along the radial direction of the output rotating shell 313; the upper end of the liquid adding pipe 317 is fixedly installed on the outside of the liquid changing joint 312; the lower end of the liquid adding pipe 317 is fixedly connected to the side of the liquid inlet pipe 309; the baffle 320 is fixedly installed on the end face of the reversing turntable 321;

[0039] As Figure 9 shown, in the output sub-blade 314, the sub-blade main body 322 is rotatably connected to the side of the output main blade 315; the sub-blade slider 323 is fixedly installed on the side of the sub-blade main body 322; the sub-blade slider 323 is also slidably installed in the end face of the limit disk 310 along the circumferential direction.

[0040] As Figure 10 and Figure 11As shown, in the liquid dropping device 4, the liquid dropping support 401 is fixedly installed inside the support device 1; two liquid dropping boxes 402 are fixedly installed at the upper end of the liquid dropping support 401; a water pump is arranged inside the liquid dropping box 402; both ends of the liquid dropping spring 403 are respectively fixedly installed inside the liquid dropping support 401 and at the upper end of the first slider 404; the first slider 404 is slidably installed inside the liquid dropping support 401 in the vertical direction; an electric push rod is arranged on the side of the electric clamping plate 405; the electric push rod on the electric clamping plate 405 is fixedly installed horizontally on the right side of the control support 413; the liquid dropping card slots 406 are distributed vertically on the right side of the liquid dropping support 401; the second slider 407 is slidably installed inside the liquid dropping support 401 in the vertical direction; the observation box 408 is fixedly installed on the right side of the reaction assembly 410; the conversion pull rod 409 is slidably installed horizontally inside the observation box 408; the reaction assembly 410 is fixedly installed at the lower end of the liquid dropping support 401; the reaction assembly 410 is also fixedly installed at the right end of the liquid outlet 311; the two rigid straight pipes 412 are fixedly connected through a flexible elbow 411; there is an angle between the rigid straight pipe 412 and the horizontal plane; the sides of the two rigid straight pipes 412 are respectively rotatably connected to the first slider 404 and the second slider 407; the upper end of the rigid straight pipe 412 is fixedly connected to the liquid dropping box 402; the lower end of the rigid straight pipe 412 is fixedly connected to the control dropper 417; the control dropper 417 is slidably installed at the upper end of the reaction assembly 410 in the vertical direction; the control dropper 417 is also fixedly connected to the control support 413; the control support 413 is slidably installed inside the liquid dropping support 401 in the vertical direction; the first screw 414 is slidably installed inside the reaction assembly 410 in the vertical direction; a pressure sensor is also arranged at the upper end of the first screw 414; the first nut 415 is rotatably connected to the upper end of the reaction assembly 410; the internal thread of the first nut 415 and the external thread of the first screw 414 form a thread pair; both ends of the control belt 416 are respectively slidably installed on the outer cylindrical surface of the first nut 415 and the outer cylindrical surface of the second nut 418; the second nut 418 is rotatably connected to the upper end of the reaction assembly 410; the external thread on the second screw 419 and the internal thread of the second nut 418 form a thread pair.

[0041] As Figure 12 and Figure 13 shown, in the reaction assembly 410, the suspension ball 420 is fixedly installed around the limit support 422; the limit support 422 is fixedly installed at the lower end of the first screw 414; the partition plate 421 is used to partition the internal space of the reaction assembly 410; the axis of the reaction channel 423 is arranged horizontally on the partition plate 421; external threads are arranged on the outer cylindrical surface of the reaction channel 423; the external threads on the reaction channel 423 are used to form a thread pair with the internal threads on the partition plate 421; spiral blades 424 are arranged on the inner cylindrical surface of the reaction channel 423.

[0042] AsFigure 14 As shown, in the comparison device 5, the comparison support 501 is slidably mounted vertically at the upper end of the comparison base 506; the ray emitter 502 is fixedly mounted vertically inside the comparison support 501; the clamping disc 503 is fixedly mounted at the lower end of the comparison support 501; the first standard cylinder 504 is slidably mounted vertically inside the comparison base 506; a standard liquid is stored inside the first standard cylinder 504; the second standard cylinder 505 is slidably mounted vertically inside the comparison base 506; a water pump is provided on the side of the second standard cylinder 505; the water pump on the side of the second standard cylinder 505 is communicated with the internal space of the observation box 408; the comparison base 506 is fixedly mounted at the upper end of the observation box 408; an absorbance detector is further provided on the upper surface of the comparison base 506.

[0043] The working principle of the present invention: Figure 1 and Figure 2 The usage mode and corresponding scenario of the present invention are given. The attitude control in the calcium, magnesium, strontium, and barium ion concentration analysis process is determined by the variable sampling device 3, the liquid dropping device 4, and the comparison device 5. The attitude of the variable sampling device 3 is determined by the liquid dropping device 4, and the attitude of the comparison device 5 is determined by the liquid dropping device 4. Therefore, the liquid dropping device 4 is the core of the calcium, magnesium, strontium, and barium ion concentration analysis.

[0044] Taking the preferred embodiment as an example, after the sample liquid flows into the small sample liquid cylinder 106 of the support device 1 by inertia, the sample liquid will diffuse into the variable sampling housing 302 along the liquid inlet pipe 309, and at the same time, it will also diffuse into the liquid adding swing head 316 of the output assembly 307 through the liquid adding pipe 317, so that the liquid adding swing head 316 applies a certain torque to the commutation rotating shaft 318. Subsequently, the double-output electric push rod 301 drives the two annular brackets 305 to slide inward, and the two annular brackets 305 drive the two limit disks 310 to slide inward. At this time, the torque applied by the liquid adding swing head 316 to the commutation rotating shaft 318 will assist the commutation rotating shaft 318 to rotate. The commutation rotating shaft 318 drives the commutation roller 319 to rotate through the commutation turntable 321, and the commutation roller 319 drives the output main blade 315 on the output rotating housing 313 to rotate. The output main blade 315 drives the two limit disks 310 to slide inward through the output sub-blade 314, so as to realize the transformation of the internal volume of the variable sampling housing 302. When the internal volume of the variable sampling housing 302 becomes smaller, the rate at which the sample liquid enters the reaction assembly 410 from the liquid outlet 311 will slow down, so that the sampling amount of the sample liquid can be controlled more precisely; at this time, the annular bracket 305 will also drive the pressure rod 306 to slide inward in the liquid changing joint 312, and press the residual air in the liquid changing joint 312 into the cavity of the liquid adding swing head 316, so that the sample liquid in the liquid adding swing head 316 is discharged from the liquid adding pipe 317, thereby reducing the torque of the liquid adding swing head 316 on the commutation rotating shaft 318; when the double-output electric push rod 301 drives the annular bracket 305 to slide outward, the annular bracket 305 drives the pressure rod 306 to slide outward in the liquid changing joint 312, and sucks the residual air in the liquid adding swing head 316 back into the cavity of the liquid changing joint 312, so that the sample liquid enters the liquid adding swing head 316 from the liquid adding pipe 317, thereby increasing the torque of the liquid adding swing head 316 on the commutation rotating shaft 318; when one annular bracket 305 slides, it will drive the other annular bracket 305 to slide in the variable sampling housing 302 through the variable sampling plunger 303 and the variable sampling connecting rod 304 to realize the synchronous compensation function;When the sample liquid continuously flows into the dropping device 4, the change in the liquid level of the sample liquid drives the suspension ball 420 to rise. The suspension ball 420 drives the first screw rod 414 to lift upward through the limit bracket 422. At the same time, the first screw rod 414 drives the first nut 415 to rotate. The first nut 415 drives the second nut 418 to rotate through the control belt 416. The second nut 418 drives the second screw rod 419 to lift. Subsequently, during the lifting process of the first screw rod 414, the pressure sensor at the upper end of the first screw rod 414 will come into contact with the lower end of the control bracket 413. The pressure sensor transmits the signal to the control panel 103. The control panel 103 controls the water pump in the dropping tank 402 to suck the conditioner and the indicator in the adjustment storage cylinder 104 and the indicator storage cylinder 105 into the dropping tank 402, so that the conditioner and the indicator flow into the control dropper 417 from the rigid straight pipe 412 and the flexible elbow joint 411, and then drip from the control dropper 417 into the reaction assembly 410 to realize the dropping function of the conditioner and the indicator; Lifting the first screw rod 414 and the second screw rod 419 will also drive the control bracket 413 to lift. The control bracket 413 drives the flexible elbow joint 411 to bend and fold through the rigid straight pipe 412, thereby restricting the flow rate of the indicator and the conditioner at the flexible elbow joint 411. During the folding process of the flexible elbow joint 411, the acute angle between the rigid straight pipe 412 and the horizontal plane will also become smaller, thereby restricting the flow rate of the indicator and the conditioner at the rigid straight pipe 412, making the dropping slower and easier to control when the indicator and the conditioner are close to the preset dropping amount; When the sampling amount of the sample liquid reaches the preset value, the suspension ball 420 stops rising. Subsequently, the control panel 103 controls the electric push rod on the electric card board 405 to drive the electric card board 405 to insert into the dropping card slot 406, thereby realizing the locking function of the control bracket 413. At the same time, the control panel 103 controls the water pump in the dropping tank 402 to stop working to prevent the indicator and the conditioner from falling; During the process of the sample liquid flowing into the reaction assembly 410, the sample liquid will pass through the reaction channel 423 on the partition plate 421. The spiral blade 424 in the reaction channel 423 will cause turbulence inside the sample liquid, thereby promoting the mixing of the indicator, the conditioner and the sample liquid; When the indicator, the conditioner and the sample liquid completely react, manually pull the conversion pull rod 409 to the right to connect the observation box 408 with the reaction assembly 410. Subsequently, the water pump on the second standard cylinder 505 sucks the reacted sample liquid into the second standard cylinder 505. At this time, the ray emitter 502 emits a light beam to the standard liquid in the first standard cylinder 504 and the reacted sample liquid in the second standard cylinder 505. Subsequently, the light beam hits the absorbance detector on the surface of the comparison base 506 to realize absorbance detection, thereby realizing the analysis and monitoring of the calcium, magnesium, strontium and barium ion concentrations;When the liquid level drives the limit support 422 and the first screw rod 414 to rise to the limit position through the suspension ball 420, the control support 413 will also drive the electric clamping plate 405 to lift to the limit position. At this time, the upper end of the electric clamping plate 405 will jack up the comparison support 501 a small distance, so that the clamping disc 503 is disengaged from the first standard cylinder 504, thus facilitating the replacement of the first standard cylinder 504.;

[0045] Specifically, as Figure 3 and Figure 4 shown, the support sling 102 at the upper end of the support housing 101 is used for the lifting and transfer of the entire analyzer; the control panel 103 is used to issue control signals and receive the monitored data; the adjustment storage cylinder 104 is used to store the adjuster; the indicator storage cylinder 105 is used to store the agent; the small sample liquid cylinder 106 is used for the temporary storage of the sample liquid; the motor 107 is used to drive the first gear 108 to rotate; the observation window 201 is used to observe the data displayed on the control panel 103; the door handle 202 is used to facilitate the opening and closing of the door 2.

[0046] Such as Figure 4 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, after the sample liquid flows into the small sample liquid cylinder 106 of the support device 1 by inertia, the sample liquid will flow into the inside of the variable sampling housing 302 along the liquid inlet pipe 309. At the same time, it will also flow into the liquid adding swing head 316 of the output assembly 307 through the liquid adding pipe 317, so that the liquid adding swing head 316 applies a certain torque to the commutation rotating shaft 318. Subsequently, the double-output electric push rod 301 drives the annular bracket 305 to slide inward. The two annular brackets 305 drive the two limit disks 310 to slide inward. At this time, the torque applied by the liquid adding swing head 316 to the commutation rotating shaft 318 will assist the commutation rotating shaft 318 to rotate. The commutation rotating shaft 318 drives the commutation roller 319 to rotate through the commutation turntable 321. The commutation roller 319 drives the output main blade 315 on the output rotating housing 313 to rotate. The output main blade 315 drives the two limit disks 310 to slide inward through the output secondary blade 314, thereby realizing the change of the internal volume of the variable sampling housing 302. When the internal volume of the variable sampling housing 302 becomes smaller, the rate at which the sample liquid enters the reaction assembly 410 from the liquid outlet 311 will slow down, so that the sampling amount of the sample liquid can be controlled more accurately. At this time, the annular bracket 305 will also drive the pressure rod 306 to slide inward in the liquid changing joint 312, pressing the remaining air in the liquid changing joint 312 into the cavity of the liquid adding swing head 316, so that the sample liquid in the liquid adding swing head 316 is discharged from the liquid adding pipe 317, thereby reducing the torque of the liquid adding swing head 316 on the commutation rotating shaft 318. When the double-output electric push rod 301 drives the annular bracket 305 to slide outward, the annular bracket 305 drives the pressure rod 306 to slide outward in the liquid changing joint 312, sucking the remaining air in the liquid adding swing head 316 back into the cavity of the liquid changing joint 312, so that the sample liquid enters the liquid adding swing head 316 from the liquid adding pipe 317, thereby increasing the torque of the liquid adding swing head 316 on the commutation rotating shaft 318. When one annular bracket 305 slides, it will drive the other annular bracket 305 to slide in the variable sampling housing 302 through the variable sampling plunger 303 and the variable sampling connecting rod 304 to realize the synchronous compensation function. The motor 107 drives the first gear 108 to rotate. The first gear 108 drives the second gear 308 to rotate. The second gear 308 drives the output rotating housing 313 of the output assembly 307 to rotate. The output rotating housing 313 drives the output main blade 315 and the output secondary blade 314 to rotate between the two limit disks 310, so that the sample liquid is transferred from the liquid outlet 311 on the right side of the variable sampling housing 302 to the reaction assembly 410. The stop piece 320 is used to limit the rolling range of the commutation roller 319 on the commutation turntable 321. The secondary blade main body 322 is used to be hinged to the output main blade 315. The secondary blade slider 323 is used to slidably connect with the end face of the limit disk 310.

[0047] As Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14As shown, when the sample solution continuously flows into the dropping device 4, the change in the liquid level of the sample solution drives the suspension ball 420 to rise. The suspension ball 420 drives the first screw rod 414 to lift upward through the limit bracket 422. At the same time, the first screw rod 414 drives the first nut 415 to rotate. The first nut 415 drives the second nut 418 to rotate through the control belt 416, and the second nut 418 drives the second screw rod 419 to lift. Subsequently, during the lifting process of the first screw rod 414, the pressure sensor at the upper end of the first screw rod 414 will come into contact with the lower end of the control bracket 413. The pressure sensor transmits the signal to the control panel 103, and the control panel 103 controls the water pump in the dropping tank 402 to suck the conditioner and indicator in the adjustment storage cylinder 104 and the indicator storage cylinder 105 into the dropping tank 402, so that the conditioner and indicator flow into the control dropper 417 from the rigid straight pipe 412 and the flexible elbow joint 411, and then drip from the control dropper 417 into the reaction assembly 410 to achieve the dropping function of the conditioner and indicator; Lifting the first screw rod 414 and the second screw rod 419 will also drive the control bracket 413 to lift upward in the dropping bracket 401. The control bracket 413 drives the flexible elbow joint 411 to bend and fold through the rigid straight pipe 412, thereby restricting the flow rate of the indicator and conditioner at the flexible elbow joint 411. During the folding process of the flexible elbow joint 411, the acute angle between the rigid straight pipe 412 and the horizontal plane will also become smaller, thereby restricting the flow rate of the indicator and conditioner at the rigid straight pipe 412, making the dropping slower and easier to control when the indicator and conditioner are close to the preset dropping amount; While the rigid straight pipe 412 is moving, both the first slider 404 and the second slider 407 will lift upward following the rigid straight pipe 412, shortening the distance between the rigid straight pipes 412; The dropping spring 403 is used for the delayed upward sliding of the first slider 404, so that the second slider 407 slides upward first compared to the first slider 404, making the lowest rigid straight pipe 412 reduce the angle first; When the sampling amount of the sample solution reaches the preset value, the suspension ball 420 stops rising. Subsequently, the control panel 103 controls the electric push rod on the electric clamping plate 405 to drive the electric clamping plate 405 to insert into the dropping card slot 406, thereby realizing the locking function of the control bracket 413. At the same time, the control panel 103 controls the water pump in the dropping tank 402 to stop working to prevent the indicator and conditioner from falling; During the process of the sample solution flowing into the reaction assembly 410, the sample solution will pass through the reaction channel 423 on the partition plate 421, and the spiral blades 424 in the reaction channel 423 will cause turbulence inside the sample solution, thereby promoting the mixing of the indicator, conditioner and sample solution;After the indicator and the regulator have completely reacted with the sample solution, manually pull the conversion lever 409 to the right to connect the observation box 408 with the reaction assembly 410. Subsequently, the water pump on the second standard cylinder 505 sucks the reacted sample solution into the second standard cylinder 505. At this time, the ray emitter 502 emits a light beam to the standard solution in the first standard cylinder 504 and the reacted sample solution in the second standard cylinder 505. Subsequently, the light beam hits the absorbance detector on the surface of the comparison base 506 to achieve absorbance detection, thereby realizing the analysis and monitoring of the calcium, magnesium, strontium, and barium ion concentrations. When the liquid level drives the limit bracket 422 and the first screw 414 to rise to the limit position through the suspension ball 420, the control bracket 413 will also drive the electric clamping plate 405 to rise to the limit position. At this time, the upper end of the electric clamping plate 405 will push the comparison bracket 501 upward by a small distance, causing the clamping disc 503 to disengage from the first standard cylinder 504, thus facilitating the replacement of the first standard cylinder 504.;

[0048] The present invention is not limited to the above specific embodiments. Those skilled in the art can make various changes without creative labor starting from the above concepts, and all fall within the protection scope of the present invention.

Claims

1. An online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer, comprising a support device (1), an opening and closing door (2), a variable sampling device (3), a liquid dropping device (4), and a comparison device (5), characterized in that: A variable sampling device (3) is provided with a double-output electric push rod (301), an annular bracket (305), an output assembly (307), and a limit disc (310); two annular brackets (305) are respectively fixedly installed at the front output end and the rear output end of the double-output electric push rod (301); two limit discs (310) are respectively fixedly connected to the two annular brackets (305); the output assembly (307) is provided with an output sub-leaf (314), an output main leaf (315), a liquid adding swing head (316), a commutation rotating shaft (318), a commutation roller (319), and a commutation turntable (321); the commutation turntable (321) is fixedly installed at one end of the commutation rotating shaft (318); the output sub-leaf (314) is hinged to the side of the output main leaf (315); the output sub-leaf (314) is also slidably installed along the circumferential direction on the end face of the limit disc (310); the liquid adding swing head (316) is fixedly installed at one end of the commutation rotating shaft (318) of the commutation rotating shaft (318); the commutation roller (319) is fixedly installed at one end of the output main leaf (315); the outer cylindrical surface of the commutation roller (319) is also in frictional contact with the end face of the commutation turntable (321); the double-output electric push rod (301) drives the annular bracket (305) to slide inwards, and the two annular brackets (305) drive the two limit discs (310) to slide inwards. At this time, the torque applied by the liquid adding swing head (316) to the commutation rotating shaft (318) will assist the commutation rotating shaft (318) to rotate. The commutation rotating shaft (318) drives the commutation roller (319) and the output main leaf (315) to rotate through the commutation turntable (321), and the output main leaf (315) drives the two limit discs (310) to slide inwards through the output sub-leaf (314), so as to realize the transformation of the internal volume of the variable sampling device (3); the opening and closing door (2) is hinged to the front end of the support device (1); the liquid dripping device (4) is fixedly installed on the right side of the variable sampling device (3); the liquid dripping device (4) is also fixedly installed inside the support device (1); the comparison device (5) is fixedly installed on the right side of the liquid dripping device (4).

2. The online full-automatic calcium, magnesium, strontium and barium ion concentration analyzer according to claim 1, characterized in that: The variable extraction device (3) further includes a variable extraction housing (302), a variable extraction plunger (303), a variable extraction connecting rod (304), a pressure rod (306), a second gear (308), a liquid inlet pipe (309), and a liquid outlet (311); the double-output electric push rod (301) is fixedly installed on the left side of the variable extraction housing (302) along the axis direction of the variable extraction housing (302); the variable extraction housing (302) is fixedly installed inside the support device (1); the variable extraction plunger (303) is slidably installed at the upper end of the variable extraction housing (302) in the vertical direction; both ends of the variable extraction connecting rod (304) are respectively hinged to the side surface of the variable extraction plunger (303) and the upper end of the annular bracket (305); two annular brackets (305) are respectively slidably installed at the front end and the rear end of the variable extraction housing (302) along the axis direction of the variable extraction housing (302); the pressure rod (306) is fixedly installed at the front end of the annular bracket (305); the pressure rod (306) is also slidably installed inside the output assembly (307); two limit disks (310) are slidably installed inside the variable extraction housing (302) along the axis direction of the variable extraction housing (302); the output assembly (307) is rotatably connected inside the variable extraction housing (302) along the axis direction of the variable extraction housing (302); the second gear (308) is fixedly installed on the outer cylindrical surface of the output assembly (307); the upper end of the liquid inlet pipe (309) is fixedly installed at the lower end of the variable extraction housing (302); the lower end of the liquid inlet pipe (309) is fixedly installed inside the support device (1); the liquid outlet (311) is fixedly installed on the right side of the variable extraction housing (302); the liquid outlet (311) is also fixedly installed on the left side of the drip device (4).

3. The online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer according to claim 2, characterized in that: The output assembly (307) further includes a liquid changing joint (312), an output rotating housing (313), a liquid adding pipe (317), and a retaining piece (320); the liquid changing joint (312) is rotatably connected to one end of the reversing rotating shaft (318) along the axis direction of the reversing rotating shaft (318); the cavity in the liquid changing joint (312) is communicated with the cavity in the reversing rotating shaft (318); the cavity in the reversing rotating shaft (318) is communicated with the cavity in the liquid adding swing head (316); the output rotating housing (313) is rotatably connected inside the variable extraction housing (302) along the axis direction of the variable extraction housing (302); the reversing rotating shaft (318) is rotatably connected inside the output rotating housing (313) along the axis direction of the output rotating housing (313); the output main blade (315) is rotatably connected to the side surface of the output rotating housing (313) along the radial direction of the output rotating housing (313); the upper end of the liquid adding pipe (317) is fixedly installed on the outside of the liquid changing joint (312); the lower end of the liquid adding pipe (317) is fixedly connected to the side surface of the liquid inlet pipe (309); the retaining piece (320) is fixedly installed on the end face of the reversing turntable (321).

4. An online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer according to claim 3, characterized in that: The output auxiliary blade (314) includes an auxiliary blade main body (322) and an auxiliary blade slider (323); the auxiliary blade main body (322) is rotatably connected to the side surface of the output main blade (315); the auxiliary blade slider (323) is fixedly installed on the side surface of the auxiliary blade main body (322); the auxiliary blade slider (323) is also slidably installed along the circumferential direction within the end face of the limit disc (310).

5. An online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer according to claim 4, characterized in that: The drip device (4) includes a drip support (401), a drip box (402), a drip spring (403), a first slider (404), an electric clamping plate (405), a drip card slot (406), a second slider (407), an observation box (408), a conversion pull rod (409), a reaction assembly (410), a flexible elbow joint (411), a rigid straight pipe (412), a control support (413), a first screw (414), a first nut (415), a control belt (416), a control dropper (417), a second nut (418), and a second screw (419); the drip support (401) is fixedly installed inside the support device (1); two drip boxes (402) are fixedly installed at the upper end of the drip support (401); a water pump is arranged inside the drip box (402); both ends of the drip spring (403) are respectively fixedly installed inside the drip support (401) and at the upper end of the first slider (404); the first slider (404) is slidably installed inside the drip support (401) in the vertical direction; an electric push rod is arranged on the side of the electric clamping plate (405); the electric push rod on the electric clamping plate (405) is fixedly installed on the right side of the control support (413) in the horizontal direction; the drip card slots (406) are distributed in the vertical direction on the right side of the drip support (401); the second slider (407) is slidably installed inside the drip support (401) in the vertical direction; the observation box (408) is fixedly installed on the right side of the reaction assembly (410); the conversion pull rod (409) is slidably installed inside the observation box (408) in the horizontal direction; the reaction assembly (410) is fixedly installed at the lower end of the drip support (401); the reaction assembly (410) is also fixedly installed at the right end of the liquid outlet (311); the two rigid straight pipes (412) are fixedly connected through the flexible elbow joint (411); there is an angle between the rigid straight pipe (412) and the horizontal plane; the sides of the two rigid straight pipes (412) are also respectively rotatably connected to the first slider (404) and the second slider (407); the upper end of the rigid straight pipe (412) is fixedly connected to the drip box (402); the lower end of the rigid straight pipe (412) is fixedly connected to the control dropper (417); the control dropper (417) is slidably installed at the upper end of the reaction assembly (410) in the vertical direction; the control dropper (417) is also fixedly connected to the control support (413); the control support (413) is slidably installed inside the drip support (401) in the vertical direction; the first screw (414) is slidably installed inside the reaction assembly (410) in the vertical direction; a pressure sensor is also arranged at the upper end of the first screw (414); the first nut (415) is rotatably connected to the upper end of the reaction assembly (410); the internal thread of the first nut (415) and the external thread of the first screw (414) form a thread pair; both ends of the control belt (416) are respectively slidably installed on the outer cylindrical surface of the first nut (415) and the outer cylindrical surface of the second nut (418); the second nut (418) is rotatably connected to the upper end of the reaction assembly (410);The external thread on the second screw (419) and the internal thread of the second nut (418) form a screw pair.

6. The on-line full-automatic calcium, magnesium, strontium and barium ion concentration analyzer according to claim 5, characterized in that: The reaction assembly (410) includes a suspension ball (420), a partition plate (421), a limit bracket (422), and a reaction channel (423); the suspension ball (420) is fixedly installed on the periphery of the limit bracket (422); the limit bracket (422) is fixedly installed at the lower end of the first screw (414); the partition plate (421) is used to partition the internal space of the reaction assembly (410); the axis of the reaction channel (423) is arranged horizontally on the partition plate (421).

7. An online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer according to claim 6, characterized in that: External threads are provided on the outer cylindrical surface of the reaction channel (423); the external threads on the reaction channel (423) are used to form a thread pair with the internal threads on the partition plate (421); spiral blades (424) are provided on the inner cylindrical surface of the reaction channel (423).

8. An online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer according to claim 7, characterized in that: The support device (1) includes a support housing (101), a support lifting ring (102), a control panel (103), an adjustment storage cylinder (104), an indication storage cylinder (105), a small sample liquid cylinder (106), a motor (107), and a first gear (108); the support housing (101) is fixedly installed on the periphery of the variable sampling housing (302) and the dropping liquid bracket (401); an operation chamber is further provided at the rear end of the support housing (101); the operation chamber is used to facilitate the staff to control the position of the electric clamping plate (405); the support lifting ring (102) is fixedly installed at the upper end of the support housing (101); the control panel (103) is fixedly installed at the front end of the support housing (101); the adjustment storage cylinder (104) is fixedly installed at the lower end of the support housing (101); the adjustment storage cylinder (104) is also communicated with the water pump of the dropping liquid tank (402); an adjusting agent is stored in the adjustment storage cylinder (104); the indication storage cylinder (105) is fixedly installed at the lower end of the support housing (101); the indication storage cylinder (105) is also communicated with the water pump of the dropping liquid tank (402); an indicator is stored in the indication storage cylinder (105); the small sample liquid cylinder (106) is fixedly installed at the lower end of the support housing (101); the small sample liquid cylinder (106) is fixedly connected to the lower end of the liquid inlet pipe (309); the motor (107) is fixedly installed on the side surface of the support housing (101); the first gear (108) is fixedly installed at the output end of the motor (107); the first gear (108) also forms a gear pair with the second gear (308).

9. An online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer according to claim 8, characterized in that: The comparison device (5) includes a comparison support (501), a ray emitter (502), a clamping disc (503), a first standard cylinder (504), a second standard cylinder (505), and a comparison base (506); the comparison support (501) is slidably mounted on the upper end of the comparison base (506) in the vertical direction; the ray emitter (502) is fixedly mounted inside the comparison support (501) in the vertical direction; the clamping disc (503) is fixedly mounted at the lower end of the comparison support (501); the first standard cylinder (504) is slidably mounted inside the comparison base (506) in the vertical direction; the first standard cylinder (504) stores a standard liquid inside; the second standard cylinder (505) is slidably mounted inside the comparison base (506) in the vertical direction; a water pump is provided on the side of the second standard cylinder (505); the water pump on the side of the second standard cylinder (505) is communicated with the internal space of the observation box (408); the comparison base (506) is fixedly mounted on the upper end of the observation box (408); an absorbance detector is also provided on the upper surface of the comparison base (506).

10. An online fully automatic calcium, magnesium, strontium and barium ion concentration analyzer according to claim 9, characterized in that: An observation window (201) and a door handle (202) are provided on the opening and closing door (2); the observation window (201) is used to observe the data of the control panel (103); the door handle (202) is used to facilitate the opening and closing of the opening and closing door (2).

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