Zirconium tetrachloride purification furnace cooler

Abstract

The utility model discloses a zirconium tetrachloride purification furnace cooler, which relates to the technical field of zirconium tetrachloride production, and comprises a sorting assembly, the sorting assembly comprises a hanging barrel, a condenser, an auxiliary heating pipe, a gas collecting chamber, an exhaust valve and a cooling pipeline, the condenser is sleeved outside the hanging barrel, the auxiliary heating pipe is inserted in the middle of the hanging barrel, and the air collecting chamber is sleeved outside the auxiliary heating pipe. The two sides of the hanging barrel are communicated with air collecting chambers, exhaust valves are arranged at the top ends of the air collecting chambers, cooling pipelines are communicated between the adjacent exhaust valves, and pipelines used for introducing air and cooling water for cooling are laid on the inner side of the condenser. The zirconium tetrachloride purification furnace cooler provided by the utility model has the characteristics that low-boiling-point impurities such as silicon tetrachloride, titanium tetrachloride and aluminum trichloride are enriched in the gas collection chamber and are intensively and automatically discharged, so that the loss amount of zirconium tetrachloride during exhaust is reduced, the impurity removal effect and the purity of refined zirconium tetrachloride are improved, the recovery rate of zirconium is improved, and the production cost is reduced. The working time consumption is short; the production efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of zirconium tetrachloride production technology, specifically a zirconium tetrachloride purification furnace cooler. Background Technology

[0002] When using zircon sand or zirconium oxide and chlorine as raw materials to prepare crude zirconium tetrachloride (hafnium), the content of impurities such as Fe, Al, Si, and Ti is relatively high, and purification is required to produce qualified sponge zirconium.

[0003] Traditional techniques for purifying zirconium tetrachloride suffer from complex purification and cooling processes, long processing times, and low efficiency. Furthermore, significant losses of zirconium tetrachloride occur during exhaust, resulting in a zirconium recovery rate that fails to meet expectations.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a cooler for a zirconium tetrachloride purification furnace. Utility Model Content

[0005] The purpose of this invention is to provide a zirconium tetrachloride purification furnace cooler to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a zirconium tetrachloride purification furnace cooler, comprising a sorting component, the sorting component comprising a material hanging bucket, a condenser, an auxiliary heating pipe, a gas collecting chamber, an exhaust valve, and a cooling pipeline, wherein the material hanging bucket is fitted with a condenser, and an auxiliary heating pipe is inserted into the middle of the material hanging bucket, the material hanging bucket is connected to the gas collecting chamber on both sides, and an exhaust valve is provided at the top of the gas collecting chamber, and a cooling pipeline is connected between adjacent exhaust valves.

[0007] Furthermore, the condenser is provided with pipes for cooling by air and cooling water.

[0008] Furthermore, the exhaust valve automatically opens the passage for impurity element gas in the gas collecting chamber to enter the cooling pipeline after reaching the pressure threshold.

[0009] Furthermore, the end of the cooling pipe is connected to the top of the dust collector, and a discharge valve is connected to the bottom flange of the dust collector.

[0010] Furthermore, the hanging bucket is fixedly installed at the top of the reactor opening, and a holding bucket is provided inside the reactor.

[0011] Furthermore, a main heating pipe is installed in the interlayer between the material container and the reactor, and both the main heating pipe and the auxiliary heating pipe are electrically heated.

[0012] Furthermore, the top side of the material container is connected to a feeding port, and the bottom side of the material container is connected to a slag discharge pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model can simplify the complexity of the traditional purification and cooling process, reduce time consumption, and increase work efficiency.

[0015] 2. This utility model can concentrate and automatically discharge low-boiling-point impurities such as silicon tetrachloride, titanium tetrachloride, and aluminum trichloride in the gas collection chamber.

[0016] 3. This invention reduces the loss of zirconium tetrachloride during exhaust, improves the impurity removal effect and the purity of refined zirconium tetrachloride, and increases the zirconium recovery rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0018] Figure 2 This is a cross-sectional view of the device of this utility model;

[0019] Figure 3 This is a schematic diagram of the sorting component structure of this utility model.

[0020] In the diagram: 1. Sorting assembly; 101. Material hanging bucket; 102. Condenser; 103. Secondary heating tube; 104. Gas collection chamber; 105. Exhaust valve; 106. Cooling pipeline; 2. Dust collector; 3. Discharge valve; 4. Reactor; 5. Material holding bucket; 6. Main heating tube; 7. Feeding port; 8. Slag discharge pipe. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 3As shown, a zirconium tetrachloride purification furnace cooler includes a sorting component 1. The sorting component 1 includes a material collection bin 101, a condenser 102, an auxiliary heating pipe 103, a gas collecting chamber 104, an exhaust valve 105, and a cooling pipe 106. The condenser 102 is fitted outside the material collection bin 101, and the auxiliary heating pipe 103 is inserted into the middle of the material collection bin 101. The gas collecting chamber 104 is connected to both sides of the material collection bin 101, and an exhaust valve 105 is provided at the top of the gas collecting chamber 104. A cooling pipe 106 is connected between adjacent exhaust valves 105. A pipe for air and cooling water is laid inside the condenser 102 for cooling. When the pressure threshold is reached, the exhaust valve 105 automatically opens and the impurity element gas in the gas collecting chamber 104 enters the cooling pipe 106. The cooling pipe 106 is connected to the top of the dust collector 2 at its end, and the bottom flange of the dust collector 2 is connected to the discharge valve 3. The feature of this application is that low-boiling-point impurities such as silicon tetrachloride, titanium tetrachloride, and aluminum trichloride are concentrated in the gas collection chamber 104 and automatically discharged, which reduces the loss of zirconium tetrachloride during exhaust, improves the impurity removal effect and the purity of refined zirconium tetrachloride, and improves the zirconium recovery rate. The hanging bucket 101 is fixedly installed at the top of the opening of the reactor 4, and the reactor 4 is equipped with a material holding bucket 5. The material holding bucket 5 and the reactor 4 are sandwiched between the main heating pipe 6 and the auxiliary heating pipe 103, and both the main heating pipe 6 and the auxiliary heating pipe 103 are electrically heated. The top side of the material holding bucket 5 is connected to the feeding port 7, and the bottom side of the material holding bucket 5 is connected to the slag discharge pipe 8.

[0023] Working Principle: When using this zirconium tetrachloride purification furnace cooler, solid crude zirconium tetrachloride is first loaded into the reactor 4. Then, the lid of the reactor 4 is assembled with the furnace body. Simultaneously, pre-production checks are performed on the heating system, power system, evacuation system, and cooling system. During the entire impurity element removal process, the first stage is low-temperature degassing. The evacuation system is turned on to create negative pressure inside the furnace. The main heating tube 6 of the furnace body is started, and the temperature is set between 300-330℃. When the temperature reaches above 150℃, the zirconium tetrachloride obtained after chlorination contains chlorinated impurities such as titanium tetrachloride, silicon tetrachloride, and aluminum trichloride. The zirconium tetrachloride obtained is then purified using the tetrachloride... Due to the difference in boiling points and vapor pressure differences between zirconium and these impurity chlorides, the impurities preferentially volatilize. The Fe element in the impurities exists in the form of ferric chloride, whose boiling point is very close to that of zirconium tetrachloride, making it difficult to remove. Therefore, hydrogen gas is used (a vent pipe is located at the bottom of reactor 4, not shown in the diagram) to reduce ferric chloride to ferrous chloride. Ferrous chloride has a high boiling point exceeding 1000℃ and will not volatilize, thus remaining as a solid in the residue and being discharged from the furnace through the slag discharge pipe 8. Throughout the process, the auxiliary heating pipe 103 is adjusted based on real-time monitoring to ensure a stable temperature in the upper part of reactor 4. After the hydrogen reduction is completed, the... The exhaust valve 105 above the gas chamber 104 monitors the pressure inside the reactor 4 in real time. When the pressure in the reactor 4 reaches a certain level, the exhaust valve 105 automatically opens, releasing impurities such as titanium tetrachloride, silicon tetrachloride, and aluminum trichloride through the exhaust port. As the exhaust valve 105 opens, the pressure inside the reactor 4 gradually decreases, and argon gas is simultaneously added to the reactor 4. The venting and argon filling occur simultaneously. When the pressure inside the reactor 4 reaches the set lower limit, the exhaust valve 105 closes, and the impurity gas is cooled through the cooling pipe 106 and collected in the dust collector 2. The dust collector 2 has a discharge valve 3 at the bottom to collect the impurities for centralized treatment. The reactor 4 and the main... Heating tube 6 heats the bottom zirconium tetrachloride, causing it to sublimate into gaseous zirconium tetrachloride. Water is circulated through condenser 102 for condensation. The pressure, temperature, and feed pipe of reactor 4 are automatically adjusted in real time according to the pressure inside reactor 4. When the gaseous zirconium tetrachloride encounters the material collection tank 101 inside condenser 102, it sublimates into solid refined zirconium tetrachloride. All the refined zirconium tetrachloride is collected in the material collection tank 101. The feature of this application is that low-boiling-point impurities such as silicon tetrachloride, titanium tetrachloride, and aluminum trichloride are concentrated in the gas collection chamber 104 and automatically discharged, which reduces the loss of zirconium tetrachloride during exhaust, improves the impurity removal effect and the purity of refined zirconium tetrachloride, and increases the zirconium recovery rate.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A zirconium tetrachloride purification furnace cooler comprising a sorting assembly (1), characterized in that, The sorting assembly (1) comprises a material hanging barrel (101), a condenser (102), a secondary heating pipe (103), a gas collecting chamber (104), an exhaust valve (105) and a cooling pipeline (106), the condenser (102) is arranged outside the material hanging barrel (101), the secondary heating pipe (103) is inserted into the middle of the material hanging barrel (101), the gas collecting chamber (104) is communicated with both sides of the material hanging barrel (101), the exhaust valve (105) is arranged at the top of the gas collecting chamber (104), and the cooling pipeline (106) is communicated between adjacent exhaust valves (105).

2. A zirconium tetrachloride purification furnace cooler according to claim 1, characterised in that The inside of the condenser (102) is paved with a pipeline for passing air and cooling water to cool.

3. A zirconium tetrachloride purification furnace cooler according to claim 2, characterised in that, The exhaust valve (105) automatically opens the passage of impurity element gas in the gas collecting chamber (104) into the cooling pipeline (106) after reaching a pressure threshold.

4. A zirconium tetrachloride purification furnace cooler according to claim 3, characterised in that The end of the cooling pipeline (106) is communicated with the top of a dust collector (2), and the bottom flange of the dust collector (2) is connected with a discharge valve (3).

5. A zirconium tetrachloride purification furnace cooler according to claim 4, characterised in that, The material hanging barrel (101) is fixedly installed at the open top end of a reaction furnace (4), and the inside of the reaction furnace (4) is provided with a material containing barrel (5).

6. A zirconium tetrachloride purification furnace cooler according to claim 5, wherein The material containing barrel (5) and the reaction furnace (4) are provided with a main heating pipe (6) in the interlayer, and the main heating pipe (6) and the secondary heating pipe (103) are both electric heating.

7. A zirconium tetrachloride purification furnace cooler according to claim 6, characterised in that, The top side of the material containing barrel (5) is communicated with a feeding port (7), and the bottom side of the material containing barrel (5) is communicated with a slag discharge pipe (8).

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