Titanium compound solution sampling device and method

Abstract

The invention relates to the technical field of chemical sampling, and particularly discloses a titanium compound solution sampling device and method. The device comprises a liquid storage tank, a multi-way pipe and a sampling pipe, the liquid storage tank is used for storing a titanium compound solution, a sampling port is formed in the top of the liquid storage tank, and an opening and closing valve is arranged on the sampling port; the multi-way pipe comprises a first port, a second port and a third port which are communicated with one another, the first port is connected with the sampling port, the second port is provided with a sealing ring, and the third port is communicated with a tail gas treatment system; the sampling pipe is used for penetrating through the sealing ring and the first through opening to enter the liquid storage tank after the opening and closing valve is opened, and the bottom of the sampling pipe is located on the upper layer of the titanium compound solution. According to the device provided by the scheme, in the sampling process, volatile gas is discharged into the tail gas treatment system to be treated; and in the sampling process, the residual solution on the outer wall of the sampling pipe can be wiped by the sealing ring and flows back, so that the external environment is prevented from being polluted, and the safety risk can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of chemical sampling, and in particular to a titanium compound solution sampling device and method. Background Art

[0002] Titanium compound solution refers to a liquid mixture containing titanium compounds and uniformly dispersed in a solvent. Common ones include titanium tetrachloride (TiCl4) solution, titanium sulfate (Ti(SO 4 ) 2 )) and titanyl sulfate (TiOSO 4 )) solution, etc.

[0003] Common titanium compound solutions are toxic. Take titanium tetrachloride solution as an example. As one of the main titanium compounds, titanium tetrachloride solution is widely used in titanium metal manufacturing, organic synthesis and catalyst preparation. It is highly chemically active and toxic. If the skin directly contacts liquid titanium tetrachloride, it will cause burns of varying degrees. The volatile gas of titanium tetrachloride is irritating to the respiratory mucosa. If inhaled in large quantities, it will affect the respiratory tract of workers. Therefore, the storage, sampling and transportation of titanium tetrachloride must strictly comply with safety regulations to prevent environmental pollution and personal injury.

[0004] Existing titanium compound solution sampling devices such as Figure 1 , which is carried out through the liquid outlet pipe at the bottom of the storage tank 1. Specifically, the sampling process includes:

[0005] The first step is to move the waste liquid bottle 4 to the bottom of the sampling valve 3 and cover the mouth of the liquid outlet pipe;

[0006] The second step is to open the bottom valve 2 and the sampling valve 3;

[0007] The third step is to remove the titanium compound solution remaining in the liquid outlet pipe;

[0008] Step 4: close the sampling valve 3 and replace the waste liquid bottle 4 with the sampling bottle 5;

[0009] Step 5: Open the sampling valve 3 and start sampling;

[0010] Step 6. After sampling is completed, close the sampling valve 3 and the bottom valve 2, move the sand tray 6 to below the outlet pipe to catch the residual liquid dripping from the pipe, and cover the residual liquid dripping on the ground when replacing the sampling bottle 5 with sand.

[0011] During the above sampling process, the leaked titanium compound solution is covered by sand, but it will still pollute the environment and the risk of human contact is high; at the same time, during the sampling process, the solution in the sampling bottle 5 and the sand adsorbed with the solution will continue to produce volatile gas into the environment, affecting the operating environment and further increasing the safety risk. Summary of the invention

[0012] In view of this, the purpose of the present application is to provide a titanium compound solution sampling device and method, which are used to solve the problem of high safety risks in the existing titanium compound solution sampling method.

[0013] In order to achieve the above technical objectives, the first aspect of the present application provides a titanium compound solution sampling device, comprising: a liquid storage tank, the liquid storage tank is used to store the titanium compound solution, the top of the liquid storage tank is provided with a sampling port and the sampling port is provided with an opening and closing valve;

[0014] A multi-way pipe, the multi-way pipe comprising a first port, a second port and a third port that are interconnected, the first port is connected to the sampling port, the second port is provided with a sealing ring, and the third port is connected to the exhaust gas treatment system;

[0015] A sampling tube, which is used to pass through the sealing ring and the first opening to enter the liquid storage tank after the on-off valve is opened, and the bottom of the sampling tube is immersed in the titanium compound solution;

[0016] Wherein, a liquid level acquisition structure is arranged outside the liquid storage tank;

[0017] The sealing ring is configured to abut against the outer wall of the sampling tube when the sampling tube passes through to seal the outer wall of the sampling tube, and the sealing ring can scrape off the solution remaining on the outer wall of the sampling tube during the sampling tube removal process.

[0018] Further, the second opening is provided with a locking assembly;

[0019] The sealing ring is arranged in the locking assembly;

[0020] The locking assembly is used to adjust the outer diameter of the sealing ring.

[0021] Further, the locking assembly comprises: a base, a top seat and a locking bolt;

[0022] The base is provided with a conical groove;

[0023] The top seat is arranged above the base;

[0024] The sealing ring is arranged in the conical groove and is pressed by the top seat;

[0025] The locking bolt connects the base and the top seat;

[0026] The locking bolt is used to adjust the distance between the base and the top seat, and when the distance between the base and the top seat is reduced, the groove wall of the conical groove squeezes the sealing ring so that the outer diameter of the sealing ring is reduced.

[0027] Furthermore, the sealing rings include a plurality of sealing rings, which are arranged in a vertical direction.

[0028] Furthermore, the titanium compound solution is a titanium tetrachloride solution.

[0029] Further, the sampling tube comprises: an outer sleeve, a piston rod and a conical suction head;

[0030] The bottom of the outer sleeve is an open structure;

[0031] The piston rod is slidably disposed in the outer sleeve;

[0032] The conical suction head is detachably connected to the bottom of the outer sleeve.

[0033] Furthermore, a piston is provided at the bottom of the piston rod;

[0034] A nut is arranged on the top of the piston;

[0035] A bolt that passes through the piston and is connected to the nut is disposed at the bottom of the piston.

[0036] Further, it also includes a drain pipe;

[0037] The top of the liquid storage tank is provided with a liquid discharge port and a liquid discharge valve is provided on the liquid discharge port;

[0038] The drain pipe is used to pass through the drain port until the bottom end of the drain pipe abuts against the bottom of the liquid storage tank during draining.

[0039] Further, it also includes: an inert gas pipe;

[0040] The multi-way tube is detachably connected to the sampling port;

[0041] The sampling port is used to connect the inert gas pipe when draining liquid, so that the inert gas pipe can pass inert gas into the liquid storage tank.

[0042] Furthermore, the top of the liquid storage tank is provided with an openable and closable cover;

[0043] The cover body covers the top of the liquid storage tank when in a closed state.

[0044] The second aspect of the present application provides a titanium compound solution sampling method, which is applied to any of the titanium compound solution sampling devices described above, and comprises:

[0045] After opening the on-off valve, the sampling tube is passed through the sealing ring and the first opening into the liquid storage tank, and the sampling tube is immersed in the titanium compound solution in the liquid storage tank;

[0046] Sampling is performed through the sampling tube so that the titanium compound solution enters the sampling tube;

[0047] After the sampling is completed, the sampling tube is drawn out from the liquid storage tank.

[0048] As can be seen from the above technical scheme, the present application provides a titanium compound solution sampling device and method; wherein the device comprises: a liquid storage tank, a multi-way tube and a sampling tube; the liquid storage tank is used to store the titanium compound solution, a sampling port is provided on the top of the liquid storage tank and an opening and closing valve is provided on the sampling port; the multi-way tube comprises a first port, a second port and a third port which are interconnected, the first port is connected to the sampling port, the second port is provided with a sealing ring, and the third port is connected to the exhaust gas treatment system; the sampling tube is used to pass through the sealing ring and the first port to enter the liquid storage tank after the opening and closing valve is opened, and the bottom of the sampling tube is located on the upper layer of the titanium compound solution; the sealing ring is configured to abut against the outer wall of the sampling tube when the sampling tube passes through to seal the outer wall of the sampling tube, and the sealing ring can scrape off the solution remaining on the outer wall of the sampling tube during the removal of the sampling tube.

[0049] During the sampling process of the titanium compound solution sampling device provided in the present scheme, the volatile gas of the solution is blocked by the sealing ring and cannot leak out, and is discharged into the exhaust gas treatment system through the third port for treatment, thereby preventing the volatile gas of the solution from escaping during the sampling process; when the sampling is completed, the solution remaining on the outer wall of the sampling tube can be wiped by the sealing ring and reflux, thereby preventing the solution from moving along the outer wall of the sampling tube to the external environment and causing pollution to the external environment, thereby effectively reducing safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 A schematic diagram of an existing titanium compound solution sampling device is provided for this application;

[0052] Figure 2 A schematic diagram of the structure of a titanium compound solution sampling device provided in an embodiment of the present application;

[0053] Figure 3 A schematic diagram of a multi-way pipe of a titanium compound solution sampling device provided in an embodiment of the present application;

[0054] Figure 4A schematic diagram of a sampling tube of a titanium compound solution sampling device provided in an embodiment of the present application;

[0055] Figure 5 A schematic diagram of a liquid discharge structure of a titanium compound solution sampling device provided in an embodiment of the present application;

[0056] In the figure:

[0057] 1. Storage tank; 2. Bottom valve; 3. Sampling valve; 4. Waste liquid bottle; 5. Sampling bottle; 6. Sand table;

[0058] 10. Liquid storage tank; 11. Sampling port; 12. On-off valve; 13. Liquid discharge port; 14. Liquid discharge valve; 15. Cover;

[0059] 20. Multi-way pipe; 21. First opening; 22. Second opening; 23. Third opening; 24. Sealing ring; 25. Locking assembly; 251. Base; 252. Top seat; 253. Locking bolt; 254. Conical groove;

[0060] 30. Exhaust gas treatment system; 31. Metal hose;

[0061] 40. sampling tube; 41. outer sleeve; 42. piston rod; 43. piston; 44. nut; 45. bolt; 46. conical suction head; 47. handle;

[0062] 50. Inert gas pipe;

[0063] 60. Drain pipe. DETAILED DESCRIPTION

[0064] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the specification of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection requested by the present application.

[0065] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0066] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0067] See also Figure 2 and Figure 3 In a first aspect, an embodiment of the present application provides a titanium compound solution sampling device, comprising: a liquid storage tank 10 , a multi-way pipe 20 and a sampling tube 40 .

[0068] The liquid storage tank 10 is used to store the titanium compound solution. A sampling port 11 is provided on the top of the liquid storage tank 10, and an on-off valve 12 is provided on the sampling port 11. The on-off valve 12 can control the opening and closing of the sampling port 11. In practical applications, a liquid level acquisition structure is provided on the liquid storage tank 10, so that the staff can obtain the liquid level of the solution in the liquid storage tank 10 externally. For the sake of convenience of explanation, in the embodiments provided in the present application, the titanium compound solution is a titanium tetrachloride solution as an example for explanation.

[0069] The multi-way tube 20 includes a first port 21, a second port 22 and a third port 23 which are interconnected; the fluid can flow in from any port of the multi-way tube 20 and then flow out from any port. In this embodiment, the first port 21 is connected to the sampling port 11, the second port 22 is provided with a sealing ring 24, and the third port 23 is connected to the exhaust gas treatment system 30. That is, the multi-way tube 20 is connected to the liquid storage tank 10 through the first port 21 and to the exhaust gas treatment system 30 through the third port 23. Among them, the third port 23 can be connected to the exhaust gas treatment system 30 through a metal hose 31. The exhaust gas treatment system 30 is a system in the prior art that can perform harmless treatment on the volatile gas of the solution, which will not be described in detail in this embodiment.

[0070] The sampling tube 40 is used for sampling. Specifically, after the on-off valve 12 is opened, the sampling tube 40 can pass through the sealing ring 24 and the first port 21 and enter the liquid storage tank 10, so that the sampling tube 40 is immersed in the titanium tetrachloride solution in the liquid storage tank 10 for sampling. Among them, the depth of the sampling tube 40 extending into the liquid storage tank 10 can be controlled by the above-mentioned liquid level acquisition structure, which can be achieved by, for example, controlling the extension length of the sampling tube 40 after obtaining the liquid level height in the liquid storage tank 10. In practical applications, according to actual needs, the staff can control the sampling tube 40 to probe to any position in the liquid storage tank 10 to achieve sampling at any position, thereby making the sampling more representative. This feature greatly improves the flexibility of sampling, and cooperates with the sealing ring 24 and the sampling tube 40 to effectively avoid the contamination of the sample during the sampling process, thereby ensuring the accuracy of the sample.

[0071] Taking the sampling object as titanium tetrachloride solution as an example, when sampling, the bottom of the sampling tube 40 can be located in the upper layer of the titanium tetrachloride solution, so that the sampling object of the sampling tube 40 is the upper solution in the liquid storage tank 10. Specifically, the solution in the liquid storage tank 10 includes an upper layer, a middle layer and a lower layer; therefore, the bottom of the sampling tube 40 is located in the upper layer of the titanium tetrachloride solution, which means that the bottom of the sampling tube 40 is located at the top of the titanium tetrachloride solution within one-third of the depth. In application, the inventors found that the titanium tetrachloride solution inevitably contains some impurity ions, which may react with the components in the solution to form a precipitate during the solution placement process. At the same time, titanium tetrachloride reacts with water to generate insoluble titanium dioxide, which also causes precipitation to form at the bottom of the liquid storage tank 10. Therefore, when the sampling object is a titanium tetrachloride solution, the sampling representativeness of the bottom of the titanium tetrachloride solution is low. Therefore, the sampling tube 40 in this embodiment can obtain the upper solution and improve the representativeness of the sample.

[0072] When sampling, the sealing ring 24 is sleeved on the outer circumference of the sampling tube 40 in the process of inserting the sampling tube 40 into the multi-way tube 20, so that the sealing ring 24 is in close contact with the outer wall of the sampling tube 40, thereby sealing the outer wall of the sampling tube 40 to isolate the external air and the solution. After sampling, the sampling tube 40 is taken out until its bottom is moved above the sampling port 11, and the on-off valve 12 is closed. At the same time, the sealing ring 24 can scrape off the solution remaining on the outer wall of the sampling tube 40 during the process of taking out the sampling tube 40, so as to prevent the solution from adhering to the outer wall of the sampling tube 40 and transferring to the outside of the liquid storage tank 10, thereby reducing the leakage of the solution.

[0073] In general, the titanium compound solution sampling device provided in this embodiment avoids the limitation of sampling from the bottom of the existing sampling device, and can easily sample at different depths as needed. During the sampling process, the sealing ring 24 seals the multi-way tube 20 and the sampling tube 40 to avoid leakage of volatile gas and solution; at the same time, during sampling, the third port 23 continuously guides the volatile gas to the tail gas treatment system 30, which can achieve the isolation of the solution from the outside air during the sampling process, avoid the contamination of the sample and further improve the accuracy and reliability of the sampling, and can reduce the pollution to the environment and improve the safety of the staff's operation. Correspondingly, the device can reduce the cost of processing waste liquid and waste residue, and avoid the labor cost and cleaning cost required for covering the solution with sand. In addition, the traditional titanium tetrachloride solution storage tank is sampled from the bottom or side, resulting in the inevitable leakage of the solution from the sampling port due to gravity during long-term placement or transportation. In addition to polluting the environment and increasing the cleaning cost, this part of the leakage is difficult to be discovered in time, so it also poses a potential threat to the safety of the staff. In this embodiment, the top sampling method can effectively prevent the solution from leaking due to gravity, thereby improving the safety during storage and transportation.

[0074] As an implementation manner, the liquid level acquisition structure may be a transparent window disposed on the liquid storage tank 10 so that the staff can directly observe.

[0075] As an implementation manner, the liquid level acquisition structure may be a liquid level meter disposed inside the liquid storage tank 10 , and a display element for acquiring the liquid level meter reading is disposed outside the liquid storage tank 10 .

[0076] As an implementation mode, the bottom of the liquid storage tank 10 is provided with a through hole for the forklift's picking claw to rotate into, so that the forklift can lift the liquid storage tank 10 from the bottom.

[0077] As an implementation mode, a hook plate is provided on the top of the liquid storage tank 10 so that the hook can be connected to the liquid storage tank 10 through the hook plate, thereby facilitating the liquid storage tank 10 to be hooked up.

[0078] As an embodiment, a cover 15 that can be opened and closed is provided on the top of the liquid storage tank 10; when the cover 15 is closed, it covers the top of the liquid storage tank 10 to seal the sampling port 11 and the drainage port 13 described below. In this embodiment, the cover 15 can be a flip-top structure.

[0079] The liquid storage tank 10 provided in this embodiment is a movable storage tank, which can be directly loaded and unloaded at any place with conditions for loading and unloading chemical raw materials, and can realize intermodal transportation through transportation tools such as cars, trains, ships, and airplanes, and has the advantages of convenient transportation and high safety.

[0080] As an embodiment, the sampling tube 40 can be sampled by connecting the top of the sampling tube 40 to an extraction device. After the sampling tube 40 is immersed in the titanium tetrachloride solution, the extraction device can realize closed extraction of the solution through the sampling tube 40.

[0081] As an implementation, see Figure 4 The sampling tube 40 can be sampled by configuring the sampling tube 40 as a pull-out sampler so that the solution can be drawn into the sampling tube 40. After the sampling tube 40 is separated from the multi-way tube 20, the solution inside the sampling tube 40 is transferred to the sampling tank.

[0082] Specifically, the sampling tube 40 as a pull-out sampler may include: an outer sleeve 41, a piston rod 42 and a conical suction head 46; the bottom of the outer sleeve 41 is an open structure; the piston rod 42 can be slidably arranged in the outer sleeve 41. The conical suction head 46 is detachably connected to the bottom of the outer sleeve 41. The conical suction head 46 is a cone with a reduced cross-sectional area from the bottom, and a channel for solution circulation is provided in the middle thereof. When sampling, the solution can flow into the outer sleeve 41 through the above-mentioned channel.

[0083] As an embodiment, the top of the piston rod 42 extending out of the outer sleeve 41 may be connected to a handle 47, so that the staff can pull the piston rod 42 to take samples. After the sampling tube 40 is immersed in the solution, the solution is sucked into the outer sleeve 41 during the upward movement of the piston rod 42 relative to the outer sleeve 41.

[0084] After the sampling tube 40 absorbs the solution, the sampling tube 40 is taken out from the liquid storage tank 10 and the multi-way tube 20, and then the conical suction head 46 is moved to extend into the sampling tank, and the piston rod 42 is pushed downward to transfer the solution to the sampling tank.

[0085] The use of the conical suction head 46 helps the sampling tube 40 to pass through the sealing ring 24 and extend into the sampling tank. At the same time, it can reduce the amount of solution volatilization in the process of the sampling tube 40 leaving the multi-way tube 20 and moving to the sampling tank, thereby reducing the sample contamination and environmental pollution caused by the solution contacting the external air through the channel during the transfer process.

[0086] In a more specific embodiment, a piston 43 is disposed at the bottom of the piston rod 42 ; a nut 44 is disposed at the top of the piston 43 ; and a bolt 45 passing through the piston 43 and connected to the nut 44 is disposed at the bottom of the piston 43 .

[0087] In application, the nut 44 can be disposed at the bottom of the piston rod 42, or can be integrally disposed with the piston rod 42. The piston 43 is elastic, and the piston 43 can be elliptical. As the piston 43 is used and aged, a gap will inevitably be formed between the piston 43 and the inner wall of the outer sleeve 41. In this embodiment, when the bolt 45 and the nut 44 are tightened, the two can squeeze the piston 43 to expand outward; therefore, the outer diameter of the piston 43 can be adjusted by the cooperation of the bolt 45 and the nut 44, ensuring that the piston 43 can abut the inner wall of the outer sleeve 41 during use, thereby ensuring the sampling effect of the sampling tube 40 and avoiding leakage of the solution during transfer to the sampling tank.

[0088] In one embodiment, see Figure 3 The second opening 22 is provided with a locking assembly 25 ; the sealing ring 24 is arranged in the locking assembly 25 ; the locking assembly 25 is used to adjust the outer diameter of the sealing ring 24 .

[0089] The locking member 25 can be, for example, a bolt or other structure that can push the outer wall of the sealing ring 24 , so that the locking member 25 can adjust the outer diameter of the sealing ring 24 by squeezing it, thereby adjusting the tightness between the sealing ring 24 and the sampling tube 40 .

[0090] As an embodiment, the locking assembly 25 includes: a base 251, a top seat 252 and a locking bolt 253; a conical groove 254 is provided on the base 251; the top seat 252 is provided above the base 251; the sealing ring 24 is provided in the conical groove 254 and is pressed by the top seat 252; the locking bolt 253 connects the base 251 and the top seat 252; the locking bolt 253 is used to adjust the distance between the base 251 and the top seat 252.

[0091] When the sampling tube 40 passes through the sealing ring 24 , the locking bolt 253 can be loosened, and the sealing ring 24 will move toward the direction of the larger outer diameter of the tapered groove 254 due to its own elastic force.

[0092] After the sampling tube 40 passes through the sealing ring 24, the locking bolt 253 can be tightened to reduce the distance between the base 251 and the top seat 252. In this process, the groove wall of the conical groove 254 squeezes the sealing ring 24 to reduce the outer diameter of the sealing ring 24, so that the sealing ring 24 is close to the outer wall of the sampling tube 40 to ensure the airtightness during the sampling process.

[0093] As an implementation manner, the sealing ring 24 includes a plurality of sealing rings 24 and arranged in a vertical direction.

[0094] In the embodiment provided in the present application, the piston 43 and the sealing ring 24 may be made of fluororubber.

[0095] In the present application, the liquid storage tank 10 is used not only for sampling by the sampling tube 40, but also for draining. Specifically, the titanium compound solution sampling device provided in this embodiment also includes a drain pipe 60; a drain port 13 is provided on the top of the liquid storage tank 10 and a drain valve 14 is provided on the drain port 13; the drain valve 14 is used to control the opening and closing of the drain port 13. When draining, the drain valve 14 opens the drain port 13, and the drain pipe 60 passes through the drain port 13 until the bottom end of the drain pipe 60 abuts against the bottom of the liquid storage tank 10. Correspondingly, a sealing structure can also be provided on the drain port 13, so that the outer wall of the drain pipe 60 can be sealed after the drain pipe 60 is inserted.

[0096] Specifically, the drain pipe 60 is detachably connected to the liquid storage tank 10, so that it can be installed in or removed from the liquid storage tank 10. In addition, by adjusting the installation depth of the drain pipe 60, the drainage depth can be controlled.

[0097] In this embodiment, the bottom of the drain pipe 60 abuts against the bottom of the liquid storage tank 10 , so when draining, the liquid is drained from the bottom of the liquid storage tank 10 , which can ensure that the solution in the liquid storage tank 10 is completely drained.

[0098] As an implementation mode, the top end of the liquid discharge tube 60 may be connected to an extraction mechanism such as an extraction pump; the solution can be extracted from the liquid storage tank 10 through the extraction mechanism.

[0099] In one embodiment, see Figure 5 The titanium compound solution sampling device further comprises: an inert gas pipe 50; a multi-way pipe 20 detachably connected to a sampling port 11; and the sampling port 11 is used to connect the inert gas pipe 50 during liquid discharge so that the inert gas pipe 50 can pass inert gas into the liquid storage tank 10.

[0100] Specifically, when draining, the multi-way pipe 20 is removed from the sampling port 11, so that the inert gas pipe 50 can be connected to the sampling port 11, so that the inert gas can be discharged into the liquid storage tank 10 through the inert gas pipe 50, so that the pressure in the tank is increased, and under the action of pressure, the solution is discharged to the use area through the drain pipe 60. The inert gas can be argon.

[0101] The second aspect of the present application provides a titanium compound solution sampling method, which is applied to any of the titanium compound solution sampling devices described above and comprises the following steps:

[0102] S1. After the first port 21 of the multi-way pipe 20 is connected to the sampling port 11 and the on-off valve 12 is opened, the sampling tube 40 is passed through the sealing ring 24 and the first port 21 into the liquid storage tank 10, and the sampling tube 40 is immersed in the titanium compound solution in the liquid storage tank 10;

[0103] S2, sampling through the sampling tube 40, so that the titanium compound solution enters the sampling tube 40;

[0104] In step S2 , the valve on the third port 23 may be opened so that the volatile gas of the solution is continuously discharged into the tail gas treatment system 30 .

[0105] S3. After the sampling is completed, the sampling tube 40 is drawn out from the liquid storage tank 10.

[0106] Specifically, in step S3, after the sampling tube 40 is drawn out to above the sampling port 11, the on-off valve 12 is closed, and then the sampling tube 40 is taken out from the multi-way tube 20, and the residual solution on the tube wall is scraped off by the sealing ring 24. In addition, in this method, the titanium compound solution can be a titanium tetrachloride solution.

[0107] The above are only preferred embodiments of the present application and are not intended to limit the present invention. Although the present application has been described in detail with reference to the examples, those skilled in the art can still modify the technical solutions recorded in the aforementioned examples or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A titanium compound solution sampling device, characterized in that: include: A liquid storage tank (10), the liquid storage tank (10) being used to store a titanium compound solution, a sampling port (11) being provided at the top of the liquid storage tank (10) and an on-off valve (12) being provided on the sampling port (11); A multi-way pipe (20), the multi-way pipe (20) comprising a first port (21), a second port (22) and a third port (23) which are interconnected, the first port (21) being connected to the sampling port (11), the second port (22) being provided with a sealing ring (24), and the third port (23) being connected to an exhaust gas treatment system (30); a sampling tube (40), the sampling tube (40) being used to pass through the sealing ring (24) and the first opening (21) to enter the liquid storage tank (10) after the on-off valve (12) is opened, and to allow the bottom of the sampling tube (40) to be immersed in the titanium compound solution; Wherein, a liquid level acquisition structure is arranged outside the liquid storage tank (10); The sealing ring (24) is configured to abut against the outer wall of the sampling tube (40) when the sampling tube (40) passes through so as to seal the outer wall of the sampling tube (40), and the sealing ring (24) can scrape off the solution remaining on the outer wall of the sampling tube (40) during the process of removing the sampling tube (40).

2. The titanium compound solution sampling device according to claim 1, characterized in that: The second opening (22) is provided with a locking assembly (25); The sealing ring (24) is arranged in the locking assembly (25); The locking assembly (25) is used to adjust the outer diameter of the sealing ring (24).

3. The titanium compound solution sampling device according to claim 2, characterized in that: The locking assembly (25) comprises: a base (251), a top seat (252) and a locking bolt (253); The base (251) is provided with a conical groove (254); The top seat (252) is arranged above the base (251); The sealing ring (24) is disposed in the conical groove (254) and is pressed by the top seat (252); The locking bolt (253) connects the base (251) and the top seat (252); The locking bolt (253) is used to adjust the distance between the base (251) and the top seat (252), and when the distance between the base (251) and the top seat (252) is reduced, the groove wall of the conical groove (254) squeezes the sealing ring (24) so ​​that the outer diameter of the sealing ring (24) is reduced.

4. The titanium compound solution sampling device according to claim 1, characterized in that: The titanium compound solution is a titanium tetrachloride solution.

5. The titanium compound solution sampling device according to claim 1, characterized in that: The sampling tube (40) comprises: an outer sleeve (41), a piston rod (42) and a conical suction head (46); The bottom of the outer sleeve (41) is an open structure; The piston rod (42) is slidably disposed in the outer sleeve (41); The conical suction head (46) is detachably connected to the bottom of the outer sleeve (41).

6. The titanium compound solution sampling device according to claim 5, characterized in that: A piston (43) is provided at the bottom of the piston rod (42); A nut (44) is provided on the top of the piston (43); A bolt (45) is provided at the bottom of the piston (43) and passes through the piston (43) and is connected to the nut (44).

7. The titanium compound solution sampling device according to claim 1, characterized in that: Also includes a drain pipe (60); The top of the liquid storage tank (10) is provided with a liquid discharge port (13), and the liquid discharge port (13) is provided with a liquid discharge valve (14); The liquid discharge pipe (60) is used to pass through the liquid discharge port (13) until the bottom end of the liquid discharge pipe (60) abuts against the bottom of the liquid storage tank (10) when discharging liquid.

8. The titanium compound solution sampling device according to claim 7, characterized in that: Also includes: Inert gas pipe (50); The multi-way tube (20) is detachably connected to the sampling port (11); The sampling port (11) is used to connect to the inert gas pipe (50) when draining liquid, so that the inert gas pipe (50) can flow inert gas into the liquid storage tank (10).

9. The titanium compound solution sampling device according to any one of claims 1 to 8, characterized in that: The top of the liquid storage tank (10) is provided with an openable and closable cover (15); The cover body (15) covers the top of the liquid storage tank (10) when in a closed state.

10. A method for sampling a titanium compound solution, characterized in that: The titanium compound solution sampling device according to any one of claims 1 to 9, comprising: After the on-off valve (12) is opened, the sampling tube (40) is passed through the sealing ring (24) and the first opening (21) into the liquid storage tank (10), and the sampling tube (40) is immersed in the titanium compound solution in the liquid storage tank (10); Sampling is performed through the sampling tube (40) so that the titanium compound solution enters the sampling tube (40); After sampling is completed, the sampling tube (40) is drawn out from the liquid storage tank (10).

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