Device for purifying crude zirconium tetrachloride

Abstract

The utility model discloses a device for purifying crude zirconium tetrachloride, which comprises a tank body, the top of the tank body is fixedly connected with a tank cover through a bolt, the top of the tank cover is communicated with a zirconium tetrachloride exhaust pipeline, the lower part of one side of the tank body is communicated with an argon pipeline, and one side, far away from the argon pipeline, of the tank body is communicated with a hydrogen pipeline. The utility model relates to the technical field of zirconium tetrachloride purification, in particular to a device for purifying crude zirconium tetrachloride, which can be used for treating waste gas generated during purification through the matching of a tank body, a tank cover and a treatment device, and can be used for carrying out auxiliary heating and heat preservation on the tank body by utilizing waste heat of the waste gas because the temperature of the waste gas is higher when the waste gas is exhausted. The heat in the tank body is prevented from being directly and rapidly dissipated through the tank body, so that the energy-saving performance is improved, and external treatment equipment is not needed for waste gas treatment, so that the input of the equipment can be reduced, and the investment of economic cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of zirconium tetrachloride purification technology, specifically to an apparatus for purifying crude zirconium tetrachloride. Background Technology

[0002] Zirconium tetrachloride purification refers to the process of removing impurities from crude zirconium tetrachloride to produce pure zirconium tetrachloride. Zirconium tetrachloride obtained by chlorinating zirconium carbide, zircon, or zirconium dioxide still contains considerable amounts of impurities such as FeCl3, AlCl3, TiCl4, SiCl4, ZrOCl4, and carbon powder, which must be thoroughly removed before it can be used as a raw material for producing sponge zirconium. The main purification methods are hydrogen reduction and molten salt purification. In addition, a fluidized bed purification method has emerged. This purification process requires a zirconium tetrachloride purification device, such as the zirconium tetrachloride purifier described in application number "CN201720799698.7," which specifically relates to a zirconium tetrachloride purifier that can obtain high-purity zirconium tetrachloride crystals through two electronic temperature sensors. This invention employs a two-electronic temperature sensor design, and by controlling the electronic temperature sensors and the heating device, the purity of the zirconium tetrachloride crystals is improved. During use, when the reaction furnace... When the temperature is too high, the heating device is controlled to start cooling. When the temperature inside the reactor reaches the predetermined temperature, the heating device is controlled to start maintaining the temperature. At this time, zirconium tetrachloride sublimates and the zirconium tetrachloride gas rises. When the second temperature sensor detects that the temperature of the zirconium tetrachloride gas is too high, the gas contains too much zirconium tetrachloride, causing waste of zirconium tetrachloride. The second temperature sensor transmits the signal to the central processing unit, which in turn transmits the signal to the zirconium tetrachloride exhaust valve, which closes the exhaust valve. This device has a simple structure, scientific design, low cost, and can obtain zirconium tetrachloride crystals with high purity.

[0003] Traditional zirconium tetrachloride purification equipment cannot treat the generated waste gas during operation, requiring the use of external equipment for treatment. This increases the investment in equipment, raises economic costs, and also increases the workload of workers, thus causing inconvenience to the operators. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a device for purifying crude zirconium tetrachloride. This solves the problem that traditional zirconium tetrachloride purification devices cannot treat the generated waste gas during use, requiring external equipment for treatment. This increases the investment in equipment, raises economic costs, and increases the workload of workers, thus causing inconvenience for operators.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an apparatus for purifying crude zirconium tetrachloride, comprising a tank body, a tank cover fixedly connected to the top of the tank body by bolts, a zirconium tetrachloride exhaust pipe connected to the top of the tank cover, an argon gas pipe connected to the lower side of one side of the tank body, a hydrogen gas pipe connected to the side of the tank body away from the argon gas pipe, a flue gas exhaust pipe connected to one side of the tank cover, and a processing device disposed below the tank cover. The processing device comprises: a first conduit connected to the end of the flue gas exhaust pipe; a shell fixedly connected to the outer wall of the tank body and connected to the outer wall of the first conduit; and a purification mechanism disposed on one side of the shell. The first conduit transports the exhaust gas discharged from the flue gas exhaust pipe to the interior of the shell, and then introduces it into the purification mechanism for purification.

[0006] Preferably, a heat insulation plate is installed on one side of the outer casing.

[0007] Preferably, the purification mechanism includes: a housing, fixedly connected to the outer wall of the heat insulation plate; a second conduit, communicating with the upper side of the outer shell and extending to the lower interior of the housing; two baffles, both fixedly connected to the inner wall of the housing and both fixedly connected to the outer wall of the heat insulation plate, and both baffles fixedly connected to the outer wall of the second conduit; and a water supply and drainage pipe, communicating with the lower side of the housing; wherein the second conduit transports the exhaust gas to the lower interior of the housing, and the baffles are positioned according to the contact time between the exhaust gas and the treatment liquid.

[0008] Preferably, the tank is equipped with a heating device, which includes: a conveying pipe that penetrates the inner wall of the tank; and multiple heat-conducting plates that are installed on the inner wall of the conveying pipe. The conveying pipe delivers the high-temperature medium to the inside of the tank, and the heat-conducting plates improve the heating efficiency.

[0009] Preferably, a support leg is fixedly connected to the lower part of the outer wall of the tank, a slag discharge pipe is connected to the bottom of the tank, a sealing gasket is embedded in the groove at the top of the tank, and the top of the sealing gasket is interference-fitted with the bottom groove of the tank cover. A pressure gauge is installed on one side of the tank cover, and a temperature sensor is installed on the upper side of one side of the tank.

[0010] Beneficial effects

[0011] This invention provides an apparatus for purifying crude zirconium tetrachloride. It offers the following advantages: The apparatus, through the cooperation of a tank, a tank cover, and a treatment device, can treat the waste gas generated during purification. Furthermore, due to the high temperature of the waste gas during discharge, the residual heat is used to auxiliary heat and insulate the tank, preventing rapid heat dissipation directly from the tank's interior and thus improving energy efficiency. Since no external treatment equipment is required for waste gas treatment, the amount of equipment required is reduced, lowering economic costs. It also facilitates operation and improves ease of use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A sectional view;

[0014] Figure 3 for Figure 2 A schematic diagram of the structure of the tank body, tank cover, and temperature sensor;

[0015] Figure 4 for Figure 2 A structural diagram of the middle tank, outer shell, and box.

[0016] In the diagram: 1. Tank; 2. Processing device; 21. First conduit; 22. Outer shell; 221. Heat insulation plate; 23. Purification mechanism; 231. Box; 232. Second conduit; 233. Baffle; 234. Water supply and drainage pipe; 3. Heating device; 31. Heat conduction plate; 32. Conveying pipe; 4. Tank cover; 5. Zirconium tetrachloride exhaust pipe; 6. Smoke exhaust pipe; 7. Temperature sensor; 8. Pressure gauge; 9. Sealing gasket; 10. Support leg; 11. Slag discharge pipe; 12. Argon gas pipe; 13. Hydrogen gas pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0019] Traditional zirconium tetrachloride purification equipment cannot treat the generated waste gas during use, requiring the use of external equipment for treatment. This increases the investment in equipment, raises economic costs, and increases the workload of workers, thus causing inconvenience to the workers.

[0020] In view of this, the present invention provides an apparatus for purifying crude zirconium tetrachloride. Through the cooperation of the tank body, tank cover and treatment device, the waste gas generated during purification can be treated. When the waste gas is discharged, due to its high temperature, the waste heat of the waste gas is used to assist in heating and keeping the tank body warm, avoiding the rapid dissipation of heat directly inside the tank body, thereby improving energy-saving performance. Furthermore, since no external treatment equipment is required for waste gas treatment, the amount of equipment investment can be reduced, the economic cost can be lowered, and the operation and use of the equipment can be facilitated by the staff, thus improving the ease of use.

[0021] Example 1: By Figure 1 , 2 As shown in 3 and 4, an apparatus for purifying crude zirconium tetrachloride includes a tank 1. A tank cover 4 is bolted to the top of the tank 1. A zirconium tetrachloride exhaust pipe 5 is connected to the top of the tank cover 4. An argon pipe 12 is connected to the lower side of one side of the tank 1. A hydrogen pipe 13 is connected to the side of the tank 1 away from the argon pipe 12. A flue gas pipe 6 is connected to one side of the tank cover 4. A processing device 2 is provided below the tank cover 4. The processing device 2 includes: a first conduit 21 connected to the end of the flue gas pipe 6; a shell 22 fixedly connected to the outer wall of the tank 1 and connected to the outer wall of the first conduit 21; and a purification mechanism 23 provided on one side of the shell 22. The first conduit 21 transports the exhaust gas discharged from the flue gas pipe 6 to the interior of the shell 22, and then introduces it into the purification mechanism 23 for purification.

[0022] In the specific implementation process, it is worth noting that hydrogen can react chemically with ferric chloride to produce ferrous chloride and hydrogen chloride for purification. This is a well-known technique in the art, so it will not be elaborated on. Those skilled in the art should understand it in a broad sense. This case does not improve the principle of zirconium tetrachloride purification, and the purification method of zirconium tetrachloride is a well-known technique in the art, so it will not be elaborated on. Those skilled in the art should understand it in a broad sense.

[0023] Furthermore, a heat insulation plate 221 is installed on one side of the outer casing 22;

[0024] In the specific implementation process, it is worth noting that the heat insulation plate 221 prevents heat from being conducted to the interior of the treatment liquid to the greatest extent possible;

[0025] Specifically, when using the apparatus for purifying crude zirconium tetrachloride, the waste gas generated during purification is discharged through the exhaust pipe 6, and then transported to the interior of the outer shell 22 through the first conduit 21. At this time, the residual heat in the waste gas can heat and keep the tank 1 warm, and then enter the interior of the purification mechanism 23, where the waste gas can be treated.

[0026] Example 2: From Figure 1 , 2 As can be seen from points 3 and 4, the purification mechanism 23 includes: a housing 231, fixedly connected to the outer wall of the heat insulation plate 221; a second conduit 232, connected to the upper side of the outer shell 22 and extending to the lower interior of the housing 231; two baffles 233, both fixedly connected to the inner wall of the housing 231 and both fixedly connected to the outer wall of the heat insulation plate 221, and both baffles 233 fixedly connected to the outer wall of the second conduit 232; and a water supply and drainage pipe 234, connected to the lower side of the housing 231; wherein, the second conduit 232 transports the exhaust gas to the lower interior of the housing 231, and the baffles 233 are connected along the contact time between the exhaust gas and the treatment liquid;

[0027] In the specific implementation process, it is worth noting that the interior of the box 231 is filled with treatment liquid such as sodium hydroxide solution. The specific material of the treatment liquid can be selected according to the actual use requirements, as long as the use requirements are met. The baffle 233 can prolong the contact time between the exhaust gas and the treatment liquid, thereby ensuring the treatment quality.

[0028] Specifically, based on the above embodiment 1, when the exhaust gas enters the interior of the housing 231, the exhaust gas can be purified using the treatment liquid. The baffle 233 can prolong the contact time between the exhaust gas and the treatment liquid, thereby ensuring the treatment quality of the exhaust gas. Finally, the treated exhaust gas can be discharged.

[0029] Example 3: From Figure 2 It is known that a heating device 3 is installed inside the tank 1. The heating device 3 includes: a conveying pipe 32 that runs through the inner wall of the tank 1; and multiple heat-conducting plates 31 that are installed on the inner wall of the conveying pipe 32. The conveying pipe 32 conveys the high-temperature medium to the inside of the tank 1, and the heat-conducting plates 31 improve the heating efficiency.

[0030] In the specific implementation process, it is worth noting that the conveying pipe 32 can convey the heating medium, thereby heating the inside of the tank 1, and the heat conduction plate 31 can improve the heat conduction efficiency to improve the heating efficiency. Moreover, the selection of the heating medium can be made according to the actual operation. This is a well-known technology in the art, so it will not be elaborated on. Those skilled in the art should understand it in a broad sense.

[0031] Specifically, based on the above embodiment one, when heating, the staff delivers the external heating medium to the inside of the tank 1 through the delivery pipe 32, and then conducts heat through the heat conduction plate 31 to complete the heating operation.

[0032] Example 4: From Figure 1 , 2 As can be seen from 3, a pressure gauge 8 is installed on one side of the tank cover 4, a temperature sensor 7 is installed on the upper side of one side of the tank body 1, a support leg 10 is fixedly connected to the lower part of the outer wall of the tank body 1, a slag discharge pipe 11 is connected to the bottom of the tank body 1, and a sealing gasket 9 is embedded in the groove at the top of the tank body 1, and the top of the sealing gasket 9 is interference-fitted with the bottom groove of the tank cover 4.

[0033] In the specific implementation process, it is worth noting that this case should be equipped with control and processing equipment corresponding to pressure gauge 8 and temperature sensor 7, so as to automatically complete the control operation. Pressure gauge 8 can monitor the pressure inside tank 1 in real time, while temperature sensor 7 can monitor the temperature inside tank 1 in real time, so as to achieve better temperature control. The temperature control method can be controlled by controlling the amount of heating medium delivered, that is, the higher the delivery amount, the higher the temperature. The temperature control method here is also a well-known technology in the art, so it will not be elaborated on. Those skilled in the art should understand it in a broad sense.

[0034] Specifically, based on the above embodiment 1, the temperature sensor 7 can monitor the temperature change inside the tank 1 in real time. When the temperature is lower than the set value, the delivery of the heating medium can be increased to increase the temperature. The pressure gauge 8 can monitor the gas pressure change inside the tank 1 in real time. When the pressure is higher than the set value, the gas delivery needs to be reduced to ensure that the pressure is always at a safe value.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for purifying crude zirconium tetrachloride, comprising a tank (1), characterized in that: The top of the tank (1) is fixedly connected to a tank cover (4) by bolts. The top of the tank cover (4) is connected to a zirconium tetrachloride exhaust pipe (5). An argon pipe (12) is connected to the lower side of one side of the tank (1). A hydrogen pipe (13) is connected to the side of the tank (1) away from the argon pipe (12). A smoke exhaust pipe (6) is connected to the side of the tank cover (4). A processing device (2) is provided below the tank cover (4). The processing device (2) includes: The first conduit (21) is connected to the end of the exhaust pipe (6); The outer shell (22) is fixedly connected to the outer wall of the tank (1) and communicates with the outer wall of the first conduit (21); A purification mechanism (23) is disposed on one side of the outer casing (22); The first conduit (21) transports the exhaust gas discharged from the exhaust pipe (6) to the interior of the outer shell (22), and then introduces it into the purification mechanism (23) for purification.

2. The apparatus for purifying crude zirconium tetrachloride according to claim 1, characterized in that: A heat insulation plate (221) is installed on one side of the outer casing (22).

3. The apparatus for purifying crude zirconium tetrachloride according to claim 2, characterized in that: The purification mechanism (23) includes: The housing (231) is fixedly connected to the outer wall of the heat insulation plate (221); The second conduit (232) is connected to the upper side of the outer shell (22) and extends to the lower interior of the box (231); Two baffles (233) are provided, both of which are fixedly connected to the inner wall of the box (231) and both are fixedly connected to the outer wall of the heat insulation plate (221). Both baffles (233) are fixedly connected to the outer wall of the second conduit (232). A water supply and drainage pipe (234) is connected to the lower side of the box (231); The second conduit (232) delivers the exhaust gas to the lower interior of the housing (231), and the baffle (233) extends along the contact time between the exhaust gas and the treatment liquid.

4. The apparatus for purifying crude zirconium tetrachloride according to claim 1, characterized in that: The tank (1) is equipped with a heating device (3), which includes: A delivery pipe (32) penetrates the inner wall of the tank (1); Multiple heat-conducting plates (31) are provided and are installed on the inner wall of the conveying pipe (32); The conveying pipe (32) delivers the high-temperature medium to the interior of the tank (1), and the heat-conducting plate (31) improves the heating efficiency.

5. The apparatus for purifying crude zirconium tetrachloride according to claim 1, characterized in that: A pressure gauge (8) is installed on one side of the tank cover (4), a temperature sensor (7) is installed on the upper side of one side of the tank body (1), a support leg (10) is fixedly connected to the lower part of the outer wall of the tank body (1), a slag discharge pipe (11) is connected to the bottom of the tank body (1), a sealing gasket (9) is embedded in the groove at the top of the tank body (1), and the top of the sealing gasket (9) is interference-fitted with the bottom groove of the tank cover (4).

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