Titanium tetrachloride cold recycling device

Abstract

The utility model relates to the field of chemical production, in particular to a titanium tetrachloride cold recycling device which comprises a cold titanium tetrachloride storage tank, the device further comprises an atomizing spray head and a spray nozzle, the upper end of the cold titanium tetrachloride storage tank is fixedly connected with a supporting frame, the upper end of the supporting frame is fixedly connected with a second-stage condenser, a direct cooler and a third-stage condenser, and the inner wall of the direct cooler is fixedly connected with an annular flow dividing pipe. According to the utility model, through the use of the atomizing spray head and the spray nozzle, spraying is carried out from different angles and positions, mixed gas is further cooled, and part of gas is liquefied and flows into the cold titanium tetrachloride storage tank along the storage hopper, so that the cooling area and the uniformity are increased, and the liquefaction efficiency and the cooling effect are improved; a gas-liquid mixture is fed into a third-stage condenser for deep cooling, residual titanium tetrachloride gas is completely liquefied and flows into a cold titanium tetrachloride storage tank, liquid titanium tetrachloride in the storage tank is pressurized through a circulating system and then is fed back to a direct cooler to be used as a cooling medium, and the cooling and liquefying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical production, and in particular to a device for the cold recovery and utilization of titanium tetrachloride. Background Technology

[0002] Cold recovery refers to the recycling and reuse of cold titanium tetrachloride generated in industrial processes. The main technologies include refrigeration technology. Since titanium tetrachloride gas is usually produced using a three-stage condensation system during the liquefaction process, the loss rate of titanium tetrachloride in the condensation system is about 6%, so cold recovery technology needs to be introduced.

[0003] The existing titanium tetrachloride cold recovery and utilization equipment has a relatively simple structure. The existing condensation process has high pressure, the spray range of the cooling medium is limited, the spray is uneven, and the small cooling area leads to low condensation efficiency. Titanium tetrachloride is lost during the production process, resulting in low overall recovery rate and resource utilization rate.

[0004] Therefore, in order to address the problem that the existing titanium tetrachloride cold recovery and utilization devices have low condensation efficiency due to small cooling area, resulting in low overall recovery rate and resource utilization rate, a titanium tetrachloride cold recovery and utilization device with high liquefaction efficiency can be designed. Utility Model Content

[0005] In order to overcome the problems of low condensation efficiency, low overall recovery rate and low resource utilization rate caused by the small cooling area of ​​existing titanium tetrachloride cold recovery and utilization devices.

[0006] The technical solution of this utility model is as follows: a cold titanium tetrachloride recovery and utilization device, including a cold titanium tetrachloride storage tank; it also includes an atomizing nozzle and a spray nozzle. A support frame is fixedly connected to the upper end of the cold titanium tetrachloride storage tank. A secondary condenser, a direct cooler, and a tertiary condenser are fixedly connected to the upper end of the support frame. An annular distribution pipe is fixedly connected to the inner wall of the direct cooler. An atomizing nozzle is installed on the inner wall of the annular distribution pipe. An inlet pipe is rotatably connected to the middle of the upper end of the direct cooler. The lower end of the inlet pipe extends into the interior of the direct cooler and is fixedly connected to a storage hopper. Four spray ring pipes are fixedly connected to the outer side of the storage hopper. A spray nozzle is fixedly connected to the outer side of the spray ring pipes.

[0007] Preferably, the secondary condenser pre-cools the mixed gas, and the pre-cooled gas is introduced into the direct cooler. A portion of liquid titanium tetrachloride is sprayed out through the atomizing nozzle from the annular distribution pipe to spray and cool the mixed gas from above. Another portion of liquid titanium tetrachloride flows into the storage hopper through the liquid inlet pipe. At the same time, the rotation of the liquid inlet pipe drives the storage hopper to rotate, and the liquid titanium tetrachloride is sprayed out through the nozzle of the spray ring pipe to further cool the mixed gas, causing some of the gas to liquefy and flow into the cold titanium tetrachloride storage tank along the storage hopper. The gas-liquid mixture is then sent to the tertiary condenser for deep cooling. The remaining titanium tetrachloride gas is completely liquefied and flows into the cold titanium tetrachloride storage tank. The liquid titanium tetrachloride in the storage tank is pressurized through the circulation system and sent back to the direct cooler.

[0008] Preferably, an air inlet pipe is fixedly connected to the lower left side of the secondary condenser, and an air extraction pipe is fixedly connected to the upper end of both the secondary and tertiary condensers. The other end of the air extraction pipe is fixedly connected to the upper end of the direct cooler.

[0009] Preferably, both the direct cooler and the three-stage condenser are fixedly connected to the lower end of a liquid collection pipe, and the lower end of the liquid collection pipe passes through the support frame and is fixedly connected to the upper end of the cold titanium tetrachloride storage tank.

[0010] Preferably, a spray pump is fixedly connected to the upper end of the support frame. The inlet and outlet of the spray pump are respectively connected to an inlet pipe and an outlet pipe. The end of the inlet pipe away from the spray pump is fixedly connected to the upper end of the cold titanium tetrachloride storage tank. The end of the outlet pipe away from the spray pump is fixedly connected through a metering valve and two connecting pipes.

[0011] Preferably, there are six atomizing nozzles evenly spaced, one end of the annular diverter pipe is connected to the connecting pipe, and the end of the rear connecting pipe away from the spray pump is movably connected to the upper end of the liquid inlet pipe.

[0012] Preferably, a mounting bracket is fixedly connected to the right side of the upper end of the direct cooler, and a rotating motor is fixedly connected to the upper end of the mounting bracket. The output shaft of the rotating motor moves through the mounting bracket and is fixedly connected to a gear.

[0013] Preferably, a toothed ring is fixedly connected to the upper end of the outer side of the liquid inlet pipe, and the toothed ring and the gear are meshed together.

[0014] The beneficial effects of this utility model are:

[0015] This titanium tetrachloride cold recovery and utilization device uses atomizing nozzles and a secondary condenser to pre-cool the mixed gas. The pre-cooled gas is then introduced into a direct cooler. The inverted bucket structure of the storage hopper allows the gas to converge at the top. A portion of liquid titanium tetrachloride is sprayed out through the atomizing nozzles via an annular distribution pipe, spraying and cooling the mixed gas from above. Another portion of liquid titanium tetrachloride flows into the storage hopper through the inlet pipe. Simultaneously, the rotation of the inlet pipe drives the storage hopper to rotate, and liquid titanium tetrachloride is sprayed out through the nozzles of the spray ring pipe from different angles and positions, further cooling the mixed gas. This causes some of the gas to liquefy and flow along the storage hopper into the cold titanium tetrachloride storage tank, increasing the cooling area and uniformity, improving liquefaction efficiency and cooling effect. The gas-liquid mixture is then sent to a tertiary condenser for deep cooling. The remaining titanium tetrachloride gas is completely liquefied and flows into the cold titanium tetrachloride storage tank. The liquid titanium tetrachloride in the storage tank is then pressurized and sent back to the direct cooler through a circulation system for use as a cooling medium, improving cooling and liquefaction efficiency. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0017] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the present invention.

[0018] Figure 3 The diagram shown is a schematic representation of the direct cooler structure of this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the spray pump structure of this utility model.

[0020] Figure 5 The diagram shown is a schematic representation of the liquid inlet pipe structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Cold titanium tetrachloride storage tank; 2. Support frame; 3. Secondary condenser; 4. Direct cooler; 5. Tertiary condenser; 6. Annular distributor pipe; 7. Atomizing nozzle; 8. Liquid inlet pipe; 9. Storage hopper; 10. Spray ring pipe; 11. Nozzle; 12. Air inlet pipe; 13. Air extraction pipe; 14. Liquid collection pipe; 15. Spray pump; 16. Liquid inlet pipe; 17. Liquid outlet pipe; 18. Connecting pipe; 19. Mounting frame; 20. Rotating motor; 21. Gear; 22. Gear ring. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment: a titanium tetrachloride cold recovery and utilization device, including a cold titanium tetrachloride storage tank 1; it also includes an atomizing nozzle 7 and a nozzle 11. A support frame 2 is fixedly connected to the upper end of the cold titanium tetrachloride storage tank 1. A secondary condenser 3, a direct cooler 4, and a tertiary condenser 5 are fixedly connected to the upper end of the support frame 2. An annular diversion pipe 6 is fixedly connected to the inner wall of the direct cooler 4. An atomizing nozzle 7 is installed on the inner wall of the annular diversion pipe 6. An inlet pipe 8 is rotatably connected to the middle of the upper end of the direct cooler 4. The lower end of the inlet pipe 8 extends into the interior of the direct cooler 4 and is fixedly connected to a storage hopper 9. Four spray ring pipes 10 are fixedly connected to the outer side of the storage hopper 9. Nozzles 11 are fixedly connected to the outer side of the spray ring pipes 10. In use, the secondary condenser 3 pre-cools the mixed gas and introduces the pre-cooled gas into the direct cooler 4. The inverted bucket structure of the storage hopper 9 makes... The gas gathers at the top, and a portion of the liquid titanium tetrachloride is sprayed out through the annular splitter pipe 6 and atomizing nozzle 7 to spray and cool the mixed gas from the top. Another portion of the liquid titanium tetrachloride flows into the storage hopper 9 through the liquid inlet pipe 8. At the same time, the rotation of the liquid inlet pipe 8 drives the storage hopper 9 to rotate, and the liquid titanium tetrachloride is sprayed out through the nozzle 11 of the spray ring pipe 10 from different angles and positions to further cool the mixed gas. This causes some of the gas to liquefy and flow into the cold titanium tetrachloride storage tank 1 along the storage hopper 9, increasing the cooling area and uniformity, improving liquefaction efficiency and cooling effect. The gas-liquid mixture is then sent to the three-stage condenser 5 for deep cooling. The remaining titanium tetrachloride gas is completely liquefied and flows into the cold titanium tetrachloride storage tank 1. The liquid titanium tetrachloride in the storage tank is then pressurized through the circulation system and sent back to the direct cooler 4 as a cooling medium, improving cooling and liquefaction efficiency.

[0024] Please see Figure 3 , Figure 4 and Figure 5In this embodiment, an inlet pipe 12 is fixedly connected to the lower left side of the secondary condenser 3. An exhaust pipe 13 is fixedly connected to the upper ends of both the secondary condenser 3 and the tertiary condenser 5. The other end of the exhaust pipe 13 is fixedly connected to the upper end of the direct cooler 4. The mixed gas enters the secondary condenser 3 through the inlet pipe 12 for pre-cooling. The pre-cooled gas is then introduced into the direct cooler 4 through the exhaust pipe 13. A liquid collecting pipe 14 is fixedly connected to the lower ends of both the direct cooler 4 and the tertiary condenser 5. The lower end of the liquid collecting pipe 14 passes through a support. The support frame 2 is fixedly connected to the upper end of the cold titanium tetrachloride storage tank 1. The direct cooler 4 further cools the pre-cooled mixed gas and causes some of the gas to liquefy and flow into the cold titanium tetrachloride storage tank 1 through the collection pipe 14 along the storage hopper 9. A spray pump 15 is fixedly connected to the upper end of the support frame 2. The inlet and outlet of the spray pump 15 are respectively connected to the inlet pipe 16 and the outlet pipe 17. The end of the inlet pipe 16 away from the spray pump 15 is fixedly connected to the upper end of the cold titanium tetrachloride storage tank 1, and the end of the outlet pipe 17 away from the spray pump 15 is connected to... The metering valve and two connecting pipes 18 are fixedly connected. The spray pump 15 pumps liquid titanium tetrachloride through the inlet pipe 16 and the outlet pipe 17 to the connecting pipe 18 for recycling. There are six atomizing nozzles 7 evenly distributed. One end of the annular diverter pipe 6 is connected to the connecting pipe 18, and the end of the rear connecting pipe 18 away from the spray pump 15 is movably connected to the upper end of the inlet pipe 8. Part of the liquid titanium tetrachloride flows into the annular diverter pipe 6 through the connecting pipe 18, and the other part flows into the inlet pipe 8 through the connecting pipe 18. The connecting pipe 18 and the inlet pipe 8. A rotary joint is used for sealing connection to prevent leakage of liquid titanium tetrachloride under high-speed rotation. A mounting bracket 19 is fixedly connected to the right side of the upper end of the direct cooler 4. A rotary motor 20 is fixedly connected to the upper end of the mounting bracket 19. The output shaft of the rotary motor 20 moves through the mounting bracket 19 and is fixedly connected to a gear 21. The rotary motor 20 drives the gear 21 to rotate. A toothed ring 22 is fixedly connected to the upper end of the outer side of the liquid inlet pipe 8. The toothed ring 22 and the gear 21 are meshed and connected. The gear 21 drives the toothed ring 22 and the liquid inlet pipe 8 to rotate at the same time.

[0025] During operation, the secondary condenser 3 precools the mixed gas. The precooled gas is then introduced into the direct cooler 4 through the extraction pipe 13. A portion of the liquid titanium tetrachloride in the titanium tetrachloride storage tank 1 is pumped by the spray pump 15 through the inlet pipe 16 and the outlet pipe 17 to the connecting pipe 18, and then sprayed out through the annular diverter pipe 6 and the atomizing nozzle 7 to spray and cool the mixed gas from above. The other portion of the liquid titanium tetrachloride flows into the storage hopper 9 through the inlet pipe 8. At the same time, the rotating motor 20 drives the gear 21 to rotate, and the gear 21 drives the gear... As the ring 22 and the inlet pipe 8 rotate, liquid titanium tetrachloride is sprayed out through the nozzle 11 of the spray ring pipe 10 from different angles and positions, further cooling the mixed gas, causing some of the gas to liquefy and flow into the cold titanium tetrachloride storage tank 1 along the storage hopper 9. The remaining gas-liquid mixture is sent to the three-stage condenser 5 for deep cooling through the extraction pipe 13. The remaining titanium tetrachloride gas is completely liquefied and flows into the cold titanium tetrachloride storage tank 1. The liquid titanium tetrachloride is then pumped to the connecting pipe 18 for recycling through the spray pump 15 via the inlet pipe 16 and the outlet pipe 17.

[0026] Through the above steps, the atomizing nozzle 7 and the rotating nozzle 11 work together to spray and cool the mixed gas from different angles and positions, increasing the cooling area and uniformity, improving liquefaction efficiency and cooling effect. The circulation system pressurizes the liquid titanium tetrachloride in the storage tank and sends it back to the direct cooler 4 as a cooling medium, improving cooling and liquefaction efficiency, so as to solve the problem of low condensation efficiency, low overall recovery rate and resource utilization rate caused by the small cooling area of ​​the existing titanium tetrachloride cold recovery and utilization device.

Claims

1. A titanium tetrachloride cold recovery device, comprising a cold titanium tetrachloride storage tank (1); characterized in that: It also includes an atomizing nozzle (7) and a nozzle (11). The upper end of the cold titanium tetrachloride storage tank (1) is fixedly connected to a support frame (2). The upper end of the support frame (2) is fixedly connected to a secondary condenser (3), a direct cooler (4) and a tertiary condenser (5). The inner wall of the direct cooler (4) is fixedly connected to an annular diverter pipe (6). The inner wall of the annular diverter pipe (6) is equipped with an atomizing nozzle (7). The middle part of the upper end of the direct cooler (4) is rotatably connected to an inlet pipe (8). The lower end of the inlet pipe (8) extends into the interior of the direct cooler (4) and is fixedly connected to a storage hopper (9). The outer side of the storage hopper (9) is fixedly connected to four spray ring pipes (10). The outer side of the spray ring pipes (10) is fixedly connected to a nozzle (11).

2. The titanium tetrachloride cold recovery and utilization device according to claim 1, characterized in that: An air inlet pipe (12) is fixedly connected to the lower left side of the secondary condenser (3). An air extraction pipe (13) is fixedly connected to the upper end of both the secondary condenser (3) and the tertiary condenser (5). The other end of the air extraction pipe (13) is fixedly connected to the upper end of the direct cooler (4).

3. The titanium tetrachloride cold recovery and utilization device according to claim 1, characterized in that: The lower ends of the direct cooler (4) and the three-stage condenser (5) are fixedly connected to the liquid collection pipe (14), and the lower ends of the liquid collection pipe (14) pass through the support frame (2) and are fixedly connected to the upper end of the cold titanium tetrachloride storage tank (1).

4. The titanium tetrachloride cold recovery and utilization device according to claim 1, characterized in that: A spray pump (15) is fixedly connected to the upper end of the support frame (2). The inlet and outlet of the spray pump (15) are respectively connected to the inlet pipe (16) and the outlet pipe (17). The end of the inlet pipe (16) away from the spray pump (15) is fixedly connected to the upper end of the cold titanium tetrachloride storage tank (1). The end of the outlet pipe (17) away from the spray pump (15) is fixedly connected through a metering valve and two connecting pipes (18).

5. The titanium tetrachloride cold recovery and utilization device according to claim 4, characterized in that: There are six atomizing nozzles (7) evenly spaced. One end of the annular diverter (6) is connected to the connecting pipe (18), and the end of the rear connecting pipe (18) away from the spray pump (15) is movably connected to the upper end of the liquid inlet pipe (8).

6. The titanium tetrachloride cold recovery and utilization device according to claim 1, characterized in that: A mounting bracket (19) is fixedly connected to the right side of the upper end of the direct cooler (4). A rotating motor (20) is fixedly connected to the upper end of the mounting bracket (19). The output shaft of the rotating motor (20) moves through the mounting bracket (19) and is fixedly connected to a gear (21).

7. The titanium tetrachloride cold recovery and utilization device according to claim 6, characterized in that: A toothed ring (22) is fixedly connected to the upper end of the outside of the liquid inlet pipe (8), and the toothed ring (22) and the gear (21) are meshed together.

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