A titanium tetrachloride automatic vanadium removal system

Abstract

The present invention provides a titanium tetrachloride automatic vanadium removal system, which includes an oil storage tank, a weighing sensor, a metering pump, a regulating valve, a flowmeter, a crude titanium tetrachloride storage tank, a mixer, a primary refining system and a control device; the oil storage tank is connected to the metering pump and the regulating valve in sequence through pipelines, the regulating valve is connected to the flowmeter and the side wall feed port of the mixer in sequence through pipelines, the lower discharge port of the mixer is connected to the feed port of the primary refining system through a pipeline, the discharge port of the crude titanium tetrachloride storage tank is connected to the upper feed port of the mixer through a pipeline, the weighing sensor is installed at the lower part of the oil storage tank, and the control device can control the working states of the metering pump, the regulating valve and the crude titanium tetrachloride storage tank according to the information fed back by the weighing sensor and the flowmeter. This application can accurately measure the addition amount of vanadium removal oil, realize the traceability of data, make the crude titanium tetrachloride and the vanadium removal oil mix evenly, ensure the stable and controllable vanadium removal effect, and avoid the problem of local segregation.

Description

Technical Field

[0001] The present invention relates to the field of titanium tetrachloride refining, and more particularly to an automatic vanadium removal system for titanium tetrachloride. Background Art

[0002] During the refining process of titanium tetrachloride, vanadium is one of the impurity elements that have the greatest impact on the quality of titanium tetrachloride products. Excessive vanadium content will not only lead to unqualified chromaticity of titanium tetrachloride, but also quadruple enrich in titanium sponge, resulting in unqualified quality of titanium sponge. Vanadium mainly exists in the form of vanadyl trichloride in crude titanium. Vanadyl trichloride is infinitely miscible with titanium tetrachloride, and its boiling point of 127°C is close to that of titanium tetrachloride at 136°C, making it difficult to separate during the distillation refining process and unable to achieve the purpose of vanadium removal. Currently, the main vanadium removal processes include vanadium removal with copper wire, vanadium removal with aluminum powder, vanadium removal with oil, etc. Among them, the vanadium removal with oil has wide raw material sources, low cost, good effect and high safety. However, the existing oil addition system is relatively simple, relying on manual handling of oil drums for weighing and frequent replacement of oil drums, with high labor intensity. The oil addition volume is measured manually, and there are difficulties in metering during the oil addition process. It cannot be remotely controlled and data traceability cannot be achieved. The control process is extensive, and excessive addition is likely to cause the carbon element content of titanium tetrachloride to exceed the standard, while insufficient addition will not achieve the effect of vanadium removal. The oil addition process is affected by production adjustments and pipeline pressure fluctuations, resulting in uneven mixing of vanadium removal oil and titanium tetrachloride, causing local segregation. Therefore, it is an urgent task to improve the current oil addition vanadium removal process system. Summary of the Invention

[0003] In view of this, the present invention aims to propose an automatic vanadium removal system for titanium tetrachloride to solve the problems in the prior art such as difficult metering of the oil addition volume, inability to perform data traceability, uneven mixing of vanadium removal oil and titanium tetrachloride, inability to ensure stable and controllable vanadium removal effect, and causing local segregation.

[0004] To achieve the above object, the technical solution of the present invention is realized as follows:

[0005] An automatic vanadium removal system for titanium tetrachloride includes an oil storage tank, a weighing sensor, a metering pump, a regulating valve, a flow meter, a crude titanium tetrachloride storage tank, a mixer, a primary refining system and a control device;

[0006] The lower end of the storage oil tank is connected in sequence through pipelines to a metering pump and one end of a regulating valve. The other end of the regulating valve is connected in sequence through pipelines to a flowmeter and a side wall feed port of a mixer. The lower end discharge port of the mixer is connected through a pipeline to the feed port of a primary refining system. The discharge port of the crude titanium tetrachloride storage tank is connected through a pipeline to the upper end feed port of the mixer. The weighing sensor is installed at the lower part of the storage oil tank and is used to detect the weight of the storage oil tank in real time. The metering pump is used to send the vanadium-removing oil in the storage oil tank into the mixer. The regulating valve is used to control the flow rate of the vanadium-removing oil in the pipeline. The flowmeter is used to detect the flow rate of the vanadium-removing oil in the pipeline. The mixer is used to mix the crude titanium tetrachloride and the vanadium-removing oil for vanadium removal. The crude titanium tetrachloride storage tank is used to convey the crude titanium tetrachloride to the mixer. The control device can control the working states of the metering pump, the regulating valve, and the crude titanium tetrachloride storage tank according to the information fed back by the weighing sensor and the flowmeter.

[0007] The titanium tetrachloride automatic vanadium removal system described in this application can accurately measure the addition amount of the vanadium-removing oil, realize the traceability of data, make the crude titanium tetrachloride and the vanadium-removing oil mix evenly, ensure the stable and controllable vanadium removal effect, and avoid the problem of local segregation.

[0008] Further, the mixer includes a primary mixer and a secondary mixer. One end of the regulating valve is connected in sequence through pipelines to the flowmeter and the side wall feed port of the primary mixer. The lower end discharge port of the primary mixer is connected through a pipeline to the upper end feed port of the secondary mixer. The lower end discharge port of the secondary mixer is connected through a pipeline to the feed port of the primary refining system. The discharge port of the crude titanium tetrachloride storage tank is connected through pipelines to the upper end feed port of the primary mixer and the side wall feed port of the secondary mixer respectively.

[0009] This setting can ensure the uniform mixing of the crude titanium tetrachloride and the vanadium-removing oil and avoid the instability of the quality of titanium tetrachloride caused by excessive local oil content.

[0010] Further, the metering pump includes a first metering pump and a second metering pump. The lower end of the storage oil tank is connected to the regulating valve through pipelines via the first metering pump and the second metering pump respectively.

[0011] This setting can ensure the stable operation of the system and is also convenient for maintenance.

[0012] Further, the metering pump, the weighing sensor, the regulating valve, and the flowmeter are set for automatic interlock control. When the weight change value detected by the weighing sensor exceeds the set value range, or when the flow rate value of the vanadium-removing oil detected by the flowmeter exceeds the set value range, control signals can be sent to the regulating valve and the metering pump to adjust the working states of the regulating valve and the metering pump.

[0013] This setting can ensure that the actual refueling volume meets the process requirements, guarantee the stable and controllable rate of the entire refueling process, and also improve the stability of the system, avoiding the influence on the addition amount of vanadium-removing oil due to the damage of the weighing sensor or flowmeter.

[0014] Furthermore, a display screen is provided on the control device. The display screen can display the working states of the weighing sensor, metering pump, regulating valve, flowmeter, and crude titanium tetrachloride storage tank in real time, and is used to input the operation instructions of the user.

[0015] This setting facilitates the user to view and operate the working state of the system.

[0016] Furthermore, an alarm device is also included. The alarm device includes a horn, a flash lamp, and a signal transmitter. When the control device detects a failure of any one of the weighing sensor, metering pump, regulating valve, and flowmeter, it is used to send an alarm signal to the outside world.

[0017] This setting facilitates sending an alarm signal to the outside world.

[0018] Furthermore, when there is a conflict in the control signals of the weighing sensor and the flowmeter, the alarm device sends an alarm signal to the outside world.

[0019] This setting can avoid the influence on the control accuracy of the regulating valve and metering pump due to the failure of the weighing sensor and / or flowmeter, and further improve the stability of the system.

[0020] Furthermore, a refueling equipment room is also included. The storage tank and the metering pump are both arranged in the refueling equipment room.

[0021] This setting can avoid being interfered by the external environment and affecting the metering accuracy, and can also extend the service life of the equipment.

[0022] Furthermore, a plurality of weighing sensors are installed at the lower part of the storage tank, and the plurality of weighing sensors are evenly distributed on the storage tank.

[0023] This setting can improve the detection accuracy and detection stability of the weight of the storage tank.

[0024] Furthermore, a refueling port is provided on the storage tank. The refueling port is used to add vanadium-removing oil into the storage tank.

[0025] This setting facilitates the realization of automatic refueling into the storage tank and reduces the labor cost.

[0026] Compared with the prior art, the titanium tetrachloride automatic vanadium removal system of the present invention has the following advantages:

[0027] 1) It can accurately measure the addition amount of vanadium-removing oil and realize the traceability of data;

[0028] 2) It can make the crude titanium tetrachloride and the vanadium removal oil mix evenly, ensure the stable and controllable vanadium removal effect, and avoid the problem of local segregation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the automatic vanadium removal system for titanium tetrachloride according to an embodiment of the present invention;

[0030] Figure 2 It is another schematic structural diagram of the automatic vanadium removal system for titanium tetrachloride according to an embodiment of the present invention.

[0031] DESCRIPTION OF THE REFERENCE NUMERALS

[0032] 1, oil storage tank; 11, fuel filling port; 2, weighing sensor; 3, metering pump; 4, regulating valve; 5, flowmeter; 6, mixer; 61, primary mixer; 62, secondary mixer; 7, crude titanium tetrachloride storage tank; 8, primary refining system; 300, fuel filling equipment room. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings.

[0034] Embodiment 1

[0035] As Figures 1 to 2 shown, an automatic vanadium removal system for titanium tetrachloride includes an oil storage tank 1, a weighing sensor 2, a metering pump 3, a regulating valve 4, a flowmeter 5, a crude titanium tetrachloride storage tank 7, a mixer 6, a primary refining system 8 and a control device;

[0036] The lower end of the oil storage tank 1 is connected in sequence through a pipeline to the metering pump 3 and one end of the regulating valve 4. The other end of the regulating valve 4 is connected in sequence through a pipeline to the flowmeter 5 and the side wall feed port of the mixer 6. The lower end discharge port of the mixer 6 is connected to the feed port of the primary refining system 8 through a pipeline. The discharge port of the crude titanium tetrachloride storage tank 7 is connected to the upper end feed port of the mixer 6 through a pipeline. The weighing sensor 2 is installed at the lower part of the oil storage tank 1 for real-time detection of the weight of the oil storage tank 1. The metering pump 3 is used to send the vanadium removal oil in the oil storage tank 1 into the mixer 6. The regulating valve 4 is used to control the flow rate of the vanadium removal oil in the pipeline. The flowmeter 5 is used to detect the flow rate of the vanadium removal oil in the pipeline. The mixer 6 is used to mix the crude titanium tetrachloride and the vanadium removal oil for vanadium removal. The crude titanium tetrachloride storage tank 7 is used to transport the crude titanium tetrachloride to the mixer 6. The control device can control the working states of the metering pump 3, the regulating valve 4 and the crude titanium tetrachloride storage tank 7 according to the information fed back by the weighing sensor 2 and the flowmeter 5.

[0037] The titanium tetrachloride automatic vanadium removal system described in this application can accurately measure the addition amount of vanadium removal oil by setting a weighing sensor 2 on the storage oil tank 1, realizing the traceability of data. According to the information fed back by the weighing sensor 2 and the flowmeter 5, the control device can adjust the working states of the metering pump 3, the regulating valve 4, and the crude titanium tetrachloride storage tank 7 in real time, enabling the crude titanium tetrachloride and the vanadium removal oil to be evenly mixed, ensuring that the vanadium removal effect is stable and controllable, and avoiding the problem of local segregation.

[0038] Preferably, the metering pump 3 is set as a high-precision variable-frequency plunger metering pump.

[0039] Preferably, the regulating valve 4 is set as a pneumatic regulating valve 4.

[0040] Preferably, the flowmeter 5 is set as a high-viscosity fluid flowmeter.

[0041] As a preferred example of the present invention, the mixer 6 includes a primary mixer 61 and a secondary mixer 62. One end of the regulating valve 4 is connected to the flowmeter 5 and the side wall feed port of the primary mixer 61 in sequence through a pipeline. The lower discharge port of the primary mixer 61 is connected to the upper feed port of the secondary mixer 62 through a pipeline. The lower discharge port of the secondary mixer 62 is connected to the feed port of the primary refining system 8 through a pipeline. The discharge port of the crude titanium tetrachloride storage tank 7 is connected to the upper feed port of the primary mixer 61 and the side wall feed port of the secondary mixer 62 respectively through pipelines.

[0042] Specifically, after the vanadium removal oil enters the primary mixer 61 and is fully mixed with a small amount of crude titanium tetrachloride, the oil-containing titanium tetrachloride enters the secondary mixer 62 and is fully mixed with a large amount of crude titanium tetrachloride. After being evenly mixed, it enters the primary refining system 8. This setting can ensure the even mixing of the crude titanium tetrachloride and the vanadium removal oil, and avoid the instability of the quality of titanium tetrachloride caused by excessive local oil content.

[0043] As a preferred example of the present invention, the metering pump 3 includes a first metering pump and a second metering pump. The lower end of the storage oil tank 1 is connected to the regulating valve 4 through pipelines via the first metering pump and the second metering pump respectively.

[0044] Specifically, by setting two metering pumps 3, one can be used as a standby while the other is in use. When one of the metering pumps 3 is damaged, the standby metering pump 3 can be immediately started. This setting can ensure the stable operation of the system and is also convenient for maintenance.

[0045] As a preferred example of the present invention, an automatic interlock control is set between the metering pump 3, the weighing sensor 2, the regulating valve 4 and the flowmeter 5. When the change value of the weight of the storage tank 1 detected by the weighing sensor 2 exceeds the set value range, or when the flow value of the vanadium-removing oil in the pipeline detected by the flowmeter 5 exceeds the set value range, control signals can be sent to the regulating valve 4 and the metering pump 3 to adjust the working states of the regulating valve 4 and the metering pump 3.

[0046] Specifically, this setting can control the working state of the regulating valve 4 according to the detection information of the weighing sensor 2 and / or the flowmeter 5, adjust the amount of vanadium-removing oil instantaneously entering the first-stage mixer 61, ensure that the actual refueling amount meets the process requirements, and at the same time adjust the frequency of the metering pump 3 to gradually adjust the subsequent refueling amount, ensuring that the rate of the entire refueling process is stable and controllable. On the other hand, it can also improve the stability of the system and avoid affecting the amount of vanadium-removing oil added due to the damage of the weighing sensor 2 or the flowmeter 5.

[0047] As a preferred example of the present invention, a display screen is provided on the control device. The display screen can display the working states of the weighing sensor 2, the metering pump 3, the regulating valve 4, the flowmeter 5 and the crude titanium tetrachloride storage tank 7 in real time, and is used to input the operation instructions of the user.

[0048] Specifically, this setting facilitates the user to view and operate the working state of the system.

[0049] Preferably, the display screen is a touch screen.

[0050] As a preferred example of the present invention, an alarm device is further included. The alarm device includes a horn, a flash lamp and a signal transmitter. When the control device detects that any one of the weighing sensor 2, the metering pump 3, the regulating valve 4 and the flowmeter 5 fails, it is used to send an alarm signal to the outside.

[0051] Specifically, the horn and the flash lamp are used to send out acoustic and optical alarm signals to the outside, and the signal transmitting device is used to send alarm signals to the control terminal and the mobile terminal. This setting facilitates sending alarm signals to the outside.

[0052] As a preferred example of the present invention, when there is a conflict in the control signals of the weighing sensor 2 and the flowmeter 5, the alarm device sends an alarm signal to the outside.

[0053] Specifically, this setting can avoid affecting the control accuracy of the regulating valve 4 and the metering pump 3 due to the failure of the weighing sensor 2 and / or the flowmeter 5, and further improve the stability of the system.

[0054] As a preferred example of the present invention, a refueling equipment room 300 is further included. The storage tank 1 and the metering pump 3 are both arranged in the refueling equipment room 300.

[0055] Specifically, installing the storage oil tank 1, the weighing sensors 2, and the metering pump 3 in the refueling equipment room 300 can avoid being interfered by the external environment and affecting the metering accuracy, and can also extend the service life of the equipment.

[0056] As a preferred example of the present invention, a plurality of weighing sensors 2 are installed at the lower part of the storage oil tank 1, and the plurality of weighing sensors 2 are evenly distributed on the storage oil tank 1.

[0057] Specifically, this setting can improve the detection accuracy and detection stability of the weight of the storage oil tank 1.

[0058] Preferably, the lower part of the storage oil tank 1 is provided with ear seats, and the weighing sensors 2 are installed on the ear seats.

[0059] Preferably, 3 weighing sensors 2 are evenly installed at the lower part of the storage oil tank 1.

[0060] As a preferred example of the present invention, a fuel filling port 11 is provided on the storage oil tank 1, and the fuel filling port 11 is used to add vanadium-removing oil into the storage oil tank 1.

[0061] Specifically, the fuel filling port 11 is connected to the external fuel filling equipment through a pipeline, which is convenient for realizing automatic fuel filling into the storage oil tank 1 and reducing the labor cost.

[0062] Preferably, the oil storage capacity of the storage oil tank 1 can meet the usage of the system for 3 to 4 days.

[0063] In summary, the titanium tetrachloride automatic vanadium-removing system described in this application has the following advantages compared with the prior art: 1. By setting the weighing sensors 2 on the storage oil tank 1, the addition amount of vanadium-removing oil can be accurately measured, and the data can be traced; 2. According to the information fed back by the weighing sensors 2 and the flowmeter 5, the control device can adjust the working states of the metering pump 3, the regulating valve 4, and the crude titanium tetrachloride storage tank 7 in real time, so that the crude titanium tetrachloride and the vanadium-removing oil can be evenly mixed, ensuring that the vanadium-removing effect is stable and controllable, and avoiding the problem of local segregation; 3. It can control the working states of the regulating valve 4 and the metering pump 3 according to the detection information of the weighing sensors 2 and / or the flowmeter 5, ensure that the rate of the whole fuel filling process is stable and controllable, and improve the stability of the system.

[0064] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

1. An automatic vanadium removal system for titanium tetrachloride, characterized in that, It includes an oil storage tank (1), a weighing sensor (2), a metering pump (3), a regulating valve (4), a flowmeter (5), a crude titanium tetrachloride storage tank (7), a mixer (6), a primary refining system (8) and a control device; The lower end of the oil storage tank (1) is connected in sequence through pipelines to the metering pump (3) and one end of the regulating valve (4). The other end of the regulating valve (4) is connected in sequence through pipelines to the flowmeter (5) and the side wall feed port of the mixer (6). The lower end discharge port of the mixer (6) is connected to the feed port of the primary refining system (8) through a pipeline. The discharge port of the crude titanium tetrachloride storage tank (7) is connected to the upper end feed port of the mixer (6) through a pipeline. The weighing sensor (2) is installed at the lower part of the oil storage tank (1) and is used to detect the weight of the oil storage tank (1) in real time. The metering pump (3) is used to send the vanadium-removing oil in the oil storage tank (1) into the mixer (6). The regulating valve (4) is used to control the flow rate of the vanadium-removing oil in the pipeline. The flowmeter (5) is used to detect the flow rate of the vanadium-removing oil in the pipeline. The mixer (6) is used to mix the crude titanium tetrachloride and the vanadium-removing oil for vanadium removal. The crude titanium tetrachloride storage tank (7) is used to transport the crude titanium tetrachloride to the mixer (6). The mixer (6) includes a primary mixer (61) and a secondary mixer (62). One end of the regulating valve (4) is connected in sequence through pipelines to the flowmeter (5) and the side wall feed port of the primary mixer (61). The lower end discharge port of the primary mixer (61) is connected to the upper end feed port of the secondary mixer (62) through a pipeline. The lower end discharge port of the secondary mixer (62) is connected to the feed port of the primary refining system (8) through a pipeline. The discharge port of the crude titanium tetrachloride storage tank (7) is connected to the upper end feed port of the primary mixer (61) and the side wall feed port of the secondary mixer (62) through pipelines. An automatic interlock control is set among the metering pump (3), the weighing sensor (2), the regulating valve (4) and the flowmeter (5). When the weight change value detected by the weighing sensor (2) exceeds the set value range, or when the flow rate value of the vanadium-removing oil detected by the flowmeter (5) exceeds the set value range, control signals can be sent to the regulating valve (4) and the metering pump (3) to adjust the working states of the regulating valve (4) and the metering pump (3). The control device can control the working states of the metering pump (3), the regulating valve (4) and the crude titanium tetrachloride storage tank (7) according to the information fed back by the weighing sensor (2) and the flowmeter (5).

2. The titanium tetrachloride automatic vanadium removal system according to claim 1, characterized in that, The metering pump (3) includes a first metering pump and a second metering pump. The lower end of the oil storage tank (1) is connected to the regulating valve (4) through pipelines via the first metering pump and the second metering pump respectively.

3. The titanium tetrachloride automatic vanadium removal system according to claim 1, characterized in that, A display screen is provided on the control device. The display screen can display the working states of the weighing sensor (2), the metering pump (3), the regulating valve (4), the flowmeter (5) and the crude titanium tetrachloride storage tank (7) in real time and is used to input the operation instructions of the user.

4. The titanium tetrachloride automatic vanadium removal system according to claim 1, characterized in that, It further includes an alarm device, and the alarm device includes a horn, a flash lamp and a signal transmitter, which is used to send an alarm signal to the outside when the control device detects a failure in any one of the weighing sensor (2), metering pump (3), regulating valve (4) and flowmeter (5).

5. The titanium tetrachloride automatic vanadium removal system according to claim 4, characterized in that, When there is a conflict in the control signals of the weighing sensor (2) and the flowmeter (5), the alarm device sends an alarm signal to the outside.

6. The titanium tetrachloride automatic vanadium removal system according to claim 1, characterized in that, It further includes a fuel filling equipment room (300), and the storage oil tank (1) and the metering pump (3) are both arranged in the fuel filling equipment room (300).

7. The titanium tetrachloride automatic vanadium removal system according to claim 1, wherein A plurality of weighing sensors (2) are installed at the lower part of the storage oil tank (1), and the plurality of weighing sensors (2) are evenly distributed on the storage oil tank (1).

8. The titanium tetrachloride automatic vanadium removal system according to claim 1, wherein A fuel filling port (11) is arranged on the storage oil tank (1), and the fuel filling port (11) is used to add vanadium-removing oil into the storage oil tank (1).

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