A mercury ion detection device for sewage

Abstract

The present invention discloses a mercury ion detection device for sewage. An oscillating stirring mechanism is provided, and the output end of the oscillating stirring mechanism extends into a solution in a sealed treatment tank. In this way, the solution in the sealed treatment tank can be stirred and oscillated, and the efficiency of elemental mercury in the solution flowing out along with a carrier gas can be effectively improved. A circulating pump drives the carrier gas to flow from a carrier gas collection cylinder to the sealed treatment tank along a carrier gas circulation input mechanism, and the carrier gas can automatically flow from the sealed treatment tank to the carrier gas collection cylinder along the carrier gas circulation input mechanism. The carrier gas can be effectively recycled to completely discharge the elemental mercury into a mercury detector, thereby improving detection accuracy and efficiency.

Description

Technical Field

[0001] The present invention specifically relates to a mercury ion detection device for sewage, and relates to the relevant field of mercury ion detection equipment. Background Art

[0002] Mercury is a highly physiologically toxic metallic element. Due to its persistence, mobility, and high bioaccumulation, it has become one of the most concerning environmental pollutants. Therefore, one of the most critical indicators for wastewater treatment is the mercury ion level in wastewater. Consequently, regular mercury ion testing is essential during wastewater treatment, especially in mines and ores where heavy metal concentrations are high. Currently, there are numerous methods for mercury ion detection, the most common of which is cold atomic absorption spectrometry, which can rapidly measure the content and concentration of mercury ions in water. This method requires reducing the mercury in the water to elemental mercury, then using a carrier gas to pass the elemental mercury into a mercury analyzer for detection. Currently, this method typically uses a showerhead-style spray pan in a test bottle to inject the carrier gas into the mercury analyzer. However, this method cannot ensure that the mercury is completely transported into the analyzer along with the carrier gas, thus affecting detection accuracy and efficiency. Summary of the Invention

[0003] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a mercury ion detection device for sewage.

[0004] The present invention is achieved in this way: a mercury ion detection device for sewage is constructed, which includes a sealed treatment tank, an oscillating stirring mechanism, a carrier gas circulation input mechanism and a carrier gas collecting cylinder, wherein the oscillating stirring mechanism is provided on one side of the sealed treatment tank, the output end of the oscillating stirring mechanism extends into the sealed treatment tank, and the sealed treatment tank is filled with a solution to be treated. It is characterized in that the carrier gas circulation input mechanism is connected to the top of the sealed treatment tank, the upper end of the carrier gas circulation input mechanism is connected to the carrier gas collecting cylinder, a circulation pump is provided on one side of the carrier gas collecting cylinder, the circulation pump drives the carrier gas along the carrier gas circulation input mechanism from the carrier gas collecting cylinder to the sealed treatment tank, and the carrier gas can automatically flow from the sealed treatment tank to the carrier gas collecting cylinder along the carrier gas circulation input mechanism, the lower end of the carrier gas circulation input mechanism extends into the solution in the sealed treatment tank, and the output end of the oscillating stirring mechanism extends into the solution in the sealed treatment tank so as to stir and oscillate the solution in the sealed treatment tank.

[0005] Furthermore, preferably, a liquid injection interface is provided on one side of the upper end or the lower end of the sealed treatment tank, a one-way valve is provided on the liquid injection interface, and a sealing valve is provided on the liquid injection interface, and the solution to be treated is injected into the sealed treatment tank through the liquid injection interface, and an exhaust interface is provided on the upper end of the carrier gas collection cylinder, and a one-way valve and a sealing valve are also provided on the exhaust interface, and the treated carrier gas in the carrier gas collection cylinder is discharged into the mercury meter through the exhaust interface.

[0006] Further, preferably, the carrier gas circulation input mechanism includes a first carrier gas circulation input mechanism and a second carrier gas circulation input mechanism with the same structure, the first carrier gas circulation input mechanism and the second carrier gas circulation input mechanism are symmetrically arranged on both sides of the middle of the sealed processing tank, and two groups of symmetrically arranged oscillation stirring mechanisms are provided in the middle of the sealed processing tank.

[0007] Further, as a preference, the oscillation and stirring mechanism includes a rotating motor, a mounting seat, a coupling, a rotating shaft, a voice coil motor, and a stirring and oscillating actuator. The rotating motor is fixedly mounted on the mounting seat, and the mounting seat is fixedly mounted on the side of the sealed treatment tank through a flange. The output end of the rotating motor is connected to the rotating shaft through a coupling, and the output end of the rotating shaft is connected to the voice coil motor, and the output end of the voice coil motor is connected to the stirring and oscillating actuator. The rotating motor drives the stirring and oscillating actuator to rotate around its central axis, and the voice coil motor drives the stirring and oscillating actuator to oscillate.

[0008] Further, preferably, the stirring oscillation actuator includes a stirring disk and a stirring tooth block, the stirring disk is a conical disk structure, and a plurality of stirring tooth blocks are arranged in a circumferential array on the upper end wall of the circumferential side of the stirring disk, and a stirring groove is provided between two adjacent stirring tooth blocks, and the width of the stirring groove is greater than twice that of the stirring tooth block.

[0009] Further, as a preference, the carrier gas circulation input mechanism includes an inner tube, an outer tube and a gas outlet equalizing head, the inner tube is coaxially arranged at the center of the outer tube, the gas outlet equalizing head is provided at the lower end of the inner tube, an gas outlet cavity is constructed between the inner tube and the outer tube, the inner hole of the inner tube is constructed as an gas inlet cavity, and a circulation pump drives the airflow in the carrier gas collecting cylinder to flow downward from the gas inlet cavity in the inner tube, and the carrier gas flowing out of the gas inlet cavity passes through the solution and flows upward from the gas outlet cavity back to the carrier gas collecting cylinder.

[0010] Furthermore, preferably, a conical cover with a larger lower cross-section and a smaller upper cross-section is provided at the lower end of the outer tube, the lower end surface of the conical cover is lower than the lower end of the gas outlet equalizing head, and the gas outlet equalizing head is coaxially located in the conical cover.

[0011] Furthermore, preferably, the air outlet flow balancing head is a conical head or a spherical head, and a plurality of air outlet holes are provided on the conical surface or the arc surface of the air outlet flow balancing head.

[0012] Further, as a preference, the inner tube includes an inner upper tube, an inner lower tube, an intermediate tube, a connecting card, a connecting column, and a flow equalizing plate, wherein the inner upper tube is detachably sealed and connected to the upper part of the interior of the intermediate tube, and the inner lower tube is detachably sealed and connected to the lower part of the interior of the intermediate tube. A plurality of the flow equalizing plates located in the intermediate tube are arranged between the inner upper tube and the inner lower tube, and the two adjacent flow equalizing plates are arranged at intervals. The upper and lower ends of the inner upper tube and the upper and lower ends of the inner lower tube are fixedly connected with the connecting card, and connecting columns are fixed between each of the connecting cards. The intermediate tube is a multi-section structure, and the detachable sealing cards at both ends of each section of the intermediate tube are arranged in the card slot of the connecting card; the array on the flow equalizing plate is provided with conical holes with a larger upper end and a smaller lower end, and a connecting card is also provided on the air outlet flow equalizing head, and the lower end of the connecting column is connected to the connecting card on the air outlet flow equalizing head.

[0013] In addition, the present invention also provides a method for detecting mercury ions in sewage, which is characterized in that it utilizes the mercury ion detection device for sewage described in the present invention, and comprises the following steps:

[0014] (1) Filling a carrier gas collection cylinder with nitrogen gas, placing a sewage sample in a sealed treatment tank, then adding acid to the sewage to make the water sample acidic, adding potassium permanganate under acidic conditions to oxidize the mercury in the sewage into mercury ions, and then adding stannous chloride to reduce the mercury ions to elemental mercury. It should be noted that this step is performed in the sealed treatment tank;

[0015] (2) turning on the oscillation stirring mechanism to stir and oscillate the solution in the sealed treatment tank by using the rotation drive of the rotary motor and the oscillation drive of the voice coil motor;

[0016] (3) The carrier gas circulation input mechanism and the circulation pump are turned on simultaneously with step (2). The circulation pump drives the carrier gas to flow from the carrier gas collecting cylinder to the sealed treatment tank along the carrier gas circulation input mechanism. Then, the carrier gas automatically flows from the sealed treatment tank to the carrier gas collecting cylinder along the carrier gas circulation input mechanism. This cycle is repeated for a certain period of time. After that, the treated carrier gas in the carrier gas collecting cylinder is discharged to the mercury analyzer through the exhaust interface of the carrier gas collecting cylinder for testing.

[0017] The present invention has the following advantages: Compared with similar devices, the mercury ion detection device for sewage provided by the present invention has the following advantages:

[0018] The present invention discloses a mercury ion detection device for sewage. An oscillating stirring mechanism is provided, and the output end of the oscillating stirring mechanism extends into the solution in a sealed treatment tank. In this way, the solution in the sealed treatment tank can be stirred and oscillated, which can effectively improve the efficiency of elemental mercury in the solution flowing out along with the carrier gas. A circulating pump drives the carrier gas to flow from a carrier gas collection cylinder to the sealed treatment tank along the carrier gas circulation input mechanism, and the carrier gas can automatically flow from the sealed treatment tank to the carrier gas collection cylinder along the carrier gas circulation input mechanism. The carrier gas can be effectively recycled to completely discharge the elemental mercury into the mercury analyzer, thereby improving the detection accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the main structure of the oscillation and stirring mechanism of the present invention;

[0021] Figure 3 3D schematic diagram of the oscillating stirring mechanism of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the carrier gas circulation input mechanism of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the Figure 1-4 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] The present invention provides a mercury ion detection device for sewage through improvement, which includes a sealed treatment tank 1, an oscillating stirring mechanism 8, a carrier gas circulation input mechanism and a carrier gas collecting cylinder 4, wherein the oscillating stirring mechanism 8 is provided on one side of the sealed treatment tank 1, and the output end of the oscillating stirring mechanism 8 extends into the sealed treatment tank 1, and the sealed treatment tank 1 is filled with a solution to be treated. It is characterized in that the carrier gas circulation input mechanism is connected to the top of the sealed treatment tank 1, the upper end of the carrier gas circulation input mechanism is connected to the carrier gas collecting cylinder 4, and a circulation pump 3 is provided on one side of the carrier gas collecting cylinder 4. The circulation pump 3 drives the carrier gas along the carrier gas circulation input mechanism from the carrier gas collecting cylinder to the sealed treatment tank, and the carrier gas can automatically flow from the sealed treatment tank to the carrier gas collecting cylinder along the carrier gas circulation input mechanism, the lower end of the carrier gas circulation input mechanism extends into the solution in the sealed treatment tank, and the output end of the oscillating stirring mechanism extends into the solution in the sealed treatment tank so as to stir and oscillate the solution in the sealed treatment tank.

[0025] In this embodiment, a liquid injection interface 6 is provided on one side of the upper end or the lower end of the sealed treatment tank 1, and a one-way valve and a sealing valve are provided on the liquid injection interface 6. The solution to be treated is injected into the sealed treatment tank through the liquid injection interface. An exhaust interface 5 is provided on the upper end of the carrier gas collection cylinder 4, and a one-way valve and a sealing valve are also provided on the exhaust interface 5. The treated carrier gas in the carrier gas collection cylinder is discharged into the mercury meter through the exhaust interface 5.

[0026] The carrier gas circulation input mechanism includes a first carrier gas circulation input mechanism 2 and a second carrier gas circulation input mechanism 7 with the same structure. The first carrier gas circulation input mechanism 2 and the second carrier gas circulation input mechanism 7 are symmetrically arranged on both sides of the middle of the sealed processing tank 1, and two groups of symmetrically arranged oscillation stirring mechanisms 8 are provided in the middle of the sealed processing tank 1.

[0027] The oscillation and stirring mechanism includes a rotating motor 8, a mounting seat 9, a coupling 10, a rotating shaft 14, a voice coil motor 12, and a stirring and oscillating actuator. The rotating motor 8 is fixedly mounted on the mounting seat 9, and the mounting seat 9 is fixedly mounted on the side of the sealed treatment tank 1 through a flange. The output end of the rotating motor 8 is connected to the rotating shaft 14 through a coupling, and the output end of the rotating shaft 14 is connected to the voice coil motor 12. The output end of the voice coil motor 12 is connected to the stirring and oscillating actuator. The rotating motor 8 drives the stirring and oscillating actuator to rotate around its central axis, and the voice coil motor drives the stirring and oscillating actuator to oscillate.

[0028] The stirring oscillation actuator includes a stirring disk 13 and a stirring tooth block 11. The stirring disk 13 is a conical disk structure. A plurality of stirring tooth blocks 11 are arranged in a circumferential array on the upper end wall of the circumferential side of the stirring disk 13. A stirring groove is provided between two adjacent stirring tooth blocks 11. The width of the stirring groove is greater than twice that of the stirring tooth block.

[0029] The carrier gas circulation input mechanism includes an inner tube, an outer tube 25 and a gas outlet equalizing head 21. The inner tube is coaxially arranged at the center of the outer tube 25. The gas outlet equalizing head 21 is provided at the lower end of the inner tube. An gas outlet cavity 24 is constructed between the inner tube and the outer tube 25. The inner hole of the inner tube is configured as an air inlet cavity 16. The circulation pump drives the air flow in the carrier gas collecting cylinder to flow downward from the air inlet cavity 16 in the inner tube. The carrier gas flowing out of the air inlet cavity passes through the solution and flows upward from the air outlet cavity 24 back to the carrier gas collecting cylinder.

[0030] The lower end of the outer tube is provided with a conical cover 22 with a larger lower cross-section and a smaller upper cross-section. The lower end surface of the conical cover 22 is lower than the lower end of the outlet air flow equalizing head, and the outlet air flow equalizing head 21 is coaxially located in the conical cover 22.

[0031] The air outlet flow equalizing head 21 is a conical head or a spherical head, and a plurality of air outlet holes 23 are provided on the conical surface or the arc surface of the air outlet flow equalizing head.

[0032] The inner tube includes an inner upper tube 15, an inner lower tube 20, an intermediate tube 27, a connecting card 19, a connecting column 18, and a flow equalizing plate 17, wherein the inner upper tube 15 is detachably sealed and connected to the upper part of the interior of the intermediate tube 27, and the inner lower tube 20 is detachably sealed and connected to the lower part of the interior of the intermediate tube 27. A plurality of the flow equalizing plates 17 located in the intermediate tube are provided between the inner upper tube and the inner lower tube, and the adjacent two flow equalizing plates are arranged at intervals. The upper and lower ends of the inner upper tube and the upper and lower ends of the inner lower tube are fixedly connected with the connecting cards. A connecting column is fixed between the connecting cards, the intermediate tube 27 is a multi-section structure, and the removable sealing cards at both ends of each section of the intermediate tube 27 are arranged in the card slot of the connecting card 19; the array on the flow equalizing plate 17 is provided with conical holes 26 with a larger upper end and a smaller lower end, and a connecting card is also provided on the air outlet flow equalizing head, and the lower end of the connecting column is connected to the connecting card on the air outlet flow equalizing head. The structure of the connecting card, the inner upper tube, the inner lower tube and the flow equalizing plate of the present invention can conveniently disassemble and clean the flow equalizing plate, and can conveniently adjust the distance between the two flow equalizing plates.

[0033] In addition, the present invention also provides a method for detecting mercury ions in sewage, which is characterized in that it utilizes the mercury ion detection device for sewage described in the present invention, and comprises the following steps:

[0034] (1) Filling a carrier gas collection cylinder with nitrogen gas, placing a sewage sample in a sealed treatment tank, then adding acid to the sewage to make the water sample acidic, adding potassium permanganate under acidic conditions to oxidize the mercury in the sewage into mercury ions, and then adding stannous chloride to reduce the mercury ions to elemental mercury. It should be noted that this step is performed in the sealed treatment tank;

[0035] (2) turning on the oscillation stirring mechanism to stir and oscillate the solution in the sealed treatment tank by using the rotation drive of the rotary motor and the oscillation drive of the voice coil motor;

[0036] (3) The carrier gas circulation input mechanism and the circulation pump are turned on simultaneously with step (2). The circulation pump drives the carrier gas to flow from the carrier gas collecting cylinder to the sealed treatment tank along the carrier gas circulation input mechanism. Then, the carrier gas automatically flows from the sealed treatment tank to the carrier gas collecting cylinder along the carrier gas circulation input mechanism. This cycle is repeated for a certain period of time. After that, the treated carrier gas in the carrier gas collecting cylinder is discharged to the mercury analyzer through the exhaust interface of the carrier gas collecting cylinder for testing.

[0037] The present invention discloses a mercury ion detection device for sewage. An oscillating stirring mechanism is provided, and the output end of the oscillating stirring mechanism extends into the solution in a sealed treatment tank. In this way, the solution in the sealed treatment tank can be stirred and oscillated, which can effectively improve the efficiency of elemental mercury in the solution flowing out along with the carrier gas. A circulating pump drives the carrier gas to flow from a carrier gas collection cylinder to the sealed treatment tank along the carrier gas circulation input mechanism, and the carrier gas can automatically flow from the sealed treatment tank to the carrier gas collection cylinder along the carrier gas circulation input mechanism. The carrier gas can be effectively recycled to completely discharge the elemental mercury into the mercury analyzer, thereby improving the detection accuracy and efficiency.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0039] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mercury ion detection device for wastewater, comprising a sealed treatment tank, an oscillating stirring mechanism, a carrier gas circulation input mechanism, and a carrier gas collection cylinder, wherein the oscillating stirring mechanism is provided on one side of the sealed treatment tank, the output end of the oscillating stirring mechanism extends into the sealed treatment tank, and a solution to be treated is placed in the sealed treatment tank, characterized in that: A carrier gas circulation input mechanism is connected to the top of the sealed treatment tank, the upper end of the carrier gas circulation input mechanism is connected to the carrier gas collection cylinder, and a circulation pump is provided on one side of the carrier gas collection cylinder. The circulation pump drives the carrier gas to flow from the carrier gas collection cylinder to the sealed treatment tank along the carrier gas circulation input mechanism, and the carrier gas can automatically flow from the sealed treatment tank to the carrier gas collection cylinder along the carrier gas circulation input mechanism. The lower end of the carrier gas circulation input mechanism extends into the solution in the sealed treatment tank, and the output end of the oscillation stirring mechanism extends into the solution in the sealed treatment tank so as to stir and oscillate the solution in the sealed treatment tank. The carrier gas circulation input mechanism includes an inner tube, an outer tube and an outlet gas equalizing head. The inner tube is coaxially arranged at the center of the outer tube. The lower end of the inner tube is provided with an outlet gas equalizing head. An outlet cavity is formed between the inner tube and the outer tube. The inner hole of the inner tube is configured as an inlet cavity. The circulation pump drives the air flow in the carrier gas collection cylinder to flow downward from the inlet cavity in the inner tube. The carrier gas flowing out of the inlet cavity passes through the solution and flows upward from the outlet cavity back to the carrier gas collection cylinder. The inner tube includes an inner upper tube, an inner lower tube, an intermediate tube, a connecting card, a connecting column, and a flow equalizing disk. The inner upper tube is detachably sealed and connected to the upper part of the interior of the intermediate tube. The inner lower tube is detachably sealed and connected to the lower part of the interior of the intermediate tube. A plurality of flow equalizing disks located in the intermediate tube are arranged between the inner upper tube and the inner lower tube. The two adjacent flow equalizing disks are arranged at intervals. The upper and lower ends of the inner upper tube and the upper and lower ends of the inner lower tube are fixedly connected with connecting card, and connecting columns are fixedly arranged between each connecting card. The intermediate tube is a multi-section structure, and the detachable sealing card at both ends of each section of the intermediate tube is arranged in the card slot of the connecting card; the array on the flow equalizing disk is provided with conical holes with a larger upper end and a smaller lower end, and a connecting card is also provided on the air outlet flow equalizing head, and the lower end of the connecting column is connected to the connecting card on the air outlet flow equalizing head; The oscillation stirring mechanism includes a rotary motor, a mounting base, a coupling, a rotating shaft, a voice coil motor, and a stirring oscillation actuator. The rotary motor is fixedly mounted on the mounting base, and the mounting base is fixedly mounted on the side of the sealed treatment tank via a flange. The output end of the rotary motor is connected to the rotating shaft via a coupling. The output end of the rotating shaft is connected to the voice coil motor. The output end of the voice coil motor is connected to the stirring oscillation actuator. The rotary motor drives the stirring oscillation actuator to rotate around its central axis, and the voice coil motor drives the stirring oscillation actuator to oscillate. The stirring oscillation actuator includes a stirring disk and a stirring tooth block. The stirring disk is a conical disk structure. A plurality of stirring tooth blocks are arranged in a circumferential array on the upper end wall of the circumferential side of the stirring disk, and a stirring groove is provided between two adjacent stirring tooth blocks.

2. A mercury ion detection device for sewage according to claim 1, characterized in that: A liquid injection interface is provided on one side of the upper end or the lower end of the sealed treatment tank, and a one-way valve and a sealing valve are provided on the liquid injection interface. The solution to be treated is injected into the sealed treatment tank through the liquid injection interface. An exhaust interface is provided on the upper end of the carrier gas collection cylinder, and a one-way valve and a sealing valve are also provided on the exhaust interface. The treated carrier gas in the carrier gas collection cylinder is discharged into the mercury analyzer through the exhaust interface.

3. The mercury ion detection device for sewage according to claim 1, characterized in that: The carrier gas circulation input mechanism includes a first carrier gas circulation input mechanism and a second carrier gas circulation input mechanism with the same structure. The first carrier gas circulation input mechanism and the second carrier gas circulation input mechanism are symmetrically arranged on both sides of the middle of the sealed processing tank, and two groups of symmetrically arranged oscillation stirring mechanisms are provided in the middle of the sealed processing tank.

4. The mercury ion detection device for sewage according to claim 1, characterized in that: The width of the stirring groove is more than twice that of the stirring tooth block.

5. The mercury ion detection device for sewage according to claim 1, characterized in that: The lower end of the outer tube is provided with a conical cover with a larger lower cross section and a smaller upper cross section. The lower end surface of the conical cover is lower than the lower end of the outlet air flow equalizing head, and the outlet air flow equalizing head is coaxially located in the conical cover.

6. The mercury ion detection device for sewage according to claim 1, characterized in that: The air outlet flow balancing head is a conical head or a spherical head, and a plurality of air outlet holes are arranged on the conical surface or the arc surface of the air outlet flow balancing head.

7. A method for detecting mercury ions in sewage, characterized in that: The method utilizes a mercury ion detection device for sewage according to any one of claims 1 to 6, comprising the following steps: (1) Filling the carrier gas collection cylinder with nitrogen gas, and placing the sewage sample in a sealed treatment tank, then adding acid to the sewage to make the water sample acidic, and adding potassium permanganate under acidic conditions to oxidize the mercury in the sewage into mercury ions, and then adding stannous chloride to reduce the mercury ions to elemental mercury. It should be noted that this step is carried out in a sealed treatment tank; (2) turning on the oscillating stirring mechanism to stir and oscillate the solution in the sealed treatment tank using the rotary drive of the rotary motor and the oscillating drive of the voice coil motor; (3) Simultaneously with step (2), the carrier gas circulation input mechanism and the circulation pump are turned on. The circulation pump drives the carrier gas to flow from the carrier gas collection tube to the sealed treatment tank along the carrier gas circulation input mechanism. Then, the carrier gas automatically flows from the sealed treatment tank to the carrier gas collection tube along the carrier gas circulation input mechanism. This cycle is repeated for a certain period of time. Afterwards, the treated carrier gas in the carrier gas collection tube is discharged to the mercury analyzer through the exhaust interface of the carrier gas collection tube for testing.

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